Therefore watch, and remember, that by the space of three years I ceased not to warn every one night and day with tears.
watch.
Matthew 13:25 But while men slept, his enemy came and sowed tares among the wheat, and went his way.
Mark 13:34-37 For the Son of man is as a man taking a far journey, who left his house, and gave authority to his servants, and to every man his work, and commanded the porter to watch…
Luke 21:36 Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.
by.
Acts 19:8,10 And he went into the synagogue, and spake boldly for the space of three months, disputing and persuading the things concerning the kingdom of God…
warn.
Ezekiel 3:17-20 Son of man, I have made thee a watchman unto the house of Israel: therefore hear the word at my mouth, and give them warning from me…
Matthew 3:7 But when he saw many of the Pharisees and Sadducees come to his baptism, he said unto them, O generation of vipers, who hath warned you to flee from the wrath to come?
1 Corinthians 4:14 I write not these things to shame you, but as my beloved sons I warn you.
night.
Acts 20:7,11 And upon the first day of the week, when the disciples came together to break bread, Paul preached unto them, ready to depart on the morrow; and continued his speech until midnight…
1 Thessalonians 2:9,10 For ye remember, brethren, our labour and travail: for labouring night and day, because we would not be chargeable unto any of you, we preached unto you the gospel of God…
2 Thessalonians 3:8 Neither did we eat any man's bread for nought; but wrought with labour and travail night and day, that we might not be chargeable to any of you:
with.
Acts 20:19 Serving the Lord with all humility of mind, and with many tears, and temptations, which befell me by the lying in wait of the Jews:
and remember that for three years
Paul's reference to "three years" highlights the duration of his ministry in Ephesus, which was one of the longest periods he spent in any city. This time frame is significant as it underscores the depth of his commitment and the thoroughness of his teaching. Ephesus was a major city in the Roman province of Asia, known for its temple to Artemis and its diverse population. Paul's extended stay allowed him to establish a strong foundation for the church amidst a challenging cultural and religious environment.
I never stopped warning each of you
Paul's continuous warning reflects his pastoral care and responsibility. The Greek word for "warning" can also mean "admonishing" or "exhorting," indicating a proactive approach to guiding the believers. This mirrors the role of a prophet, who warns of impending danger and calls for repentance. Paul's warnings were not generic but personal, as he addressed "each of you," showing his deep personal investment in the spiritual well-being of the Ephesian believers.
night and day
The phrase "night and day" emphasizes the relentless and tireless nature of Paul's ministry. It suggests a sense of urgency and dedication, reminiscent of the apostle's own words in 1 Thessalonians 2:9, where he describes his labor "night and day" to avoid being a burden. This continuous effort reflects the seriousness with which Paul approached his mission, understanding the spiritual stakes involved.
with tears
Paul's mention of "tears" reveals the emotional intensity and sincerity of his ministry. His tears are a testament to his genuine love and concern for the believers, akin to Jesus weeping over Jerusalem in Luke 19:41. This emotional expression underscores the depth of Paul's pastoral heart and his empathy for the spiritual struggles of the church. It also serves as a model for Christian leaders, highlighting the importance of compassion and heartfelt concern in ministry.
Acts 20:31 opens with, “Therefore be alert”. Paul has just warned the Ephesian elders about “savage wolves” who will distort the truth (Acts 20:29-30). His call is:
• Stay awake to spiritual danger—just as Jesus said, “Be on guard, stay alert; for you do not know when the appointed time will come” (Mark 13:33).
• Guard the flock—Peter echoes, “Be sober-minded and alert. Your adversary the devil prowls around” (1 Peter 5:8).
• Cultivate readiness—Paul earlier taught, “So then, let us not sleep as the others do, but let us remain awake and sober” (1 Thessalonians 5:6).
Alertness is not anxiety but active dependence on the Spirit, attentive to Scripture, quick to correct error, and eager to encourage what is true.
Paul continues, “and remember.” Memory anchors conviction:
• God told Israel, “Remember all the way that the LORD your God has led you” (Deuteronomy 8:2).
• Paul later urges Timothy, “Remember Jesus Christ, raised from the dead” (2 Timothy 2:8).
• The writer to the Hebrews adds, “Remember your leaders who spoke the word of God to you” (Hebrews 13:7).
Calling the elders to recall Paul’s example gives them a living model of steadfast ministry amid testing.
“For three years” sets the length and intensity of Paul’s service in Ephesus. We learn from Acts 19:8-10 that he “disputed daily…for two years,” plus earlier months in the synagogue, totaling about three full years. Like the vinedresser in Jesus’ parable who tended the fig tree “for three years” (Luke 13:7), Paul invested patiently until the church could stand on its own.
“I never stopped” shows persistence; “warning each of you” highlights personal care.
• Paul tells the Colossians, “We proclaim Him, admonishing everyone…so that we may present everyone perfect in Christ” (Colossians 1:28).
• To the Corinthians he writes, “I am not writing this to shame you, but to warn you as my beloved children” (1 Corinthians 4:14).
• As Ezekiel was a watchman for Israel (Ezekiel 33:7), Paul functions as a watchman for the church, sounding the alarm whenever error or sin threatens.
His vigilance was around the clock:
• “You remember our labor and toil: working night and day so as not to burden any of you” (1 Thessalonians 2:9).
• He tells Timothy, “I constantly remember you in my prayers night and day” (2 Timothy 1:3).
• Anna served in the temple “worshiping with fasting and prayer night and day” (Luke 2:37).
Faithful ministry refuses to punch a time-clock; love compels a shepherd to sacrifice convenience for the wellbeing of the flock.
Paul’s warnings were not harsh scoldings but heartfelt appeals:
• Earlier he reminded these elders that he served “with great humility and with tears” (Acts 20:19).
• To Corinth he wrote, “I wrote to you out of great distress and anguish of heart, with many tears” (2 Corinthians 2:4).
• Speaking of false teachers, he says, “I have often told you, and now say again even with tears” (Philippians 3:18).
Tears prove the authenticity of his concern; doctrine divorced from compassion fails to reflect Christ.
Acts 20:31 paints a portrait of vigilant, sacrificial shepherding. Paul urges leaders to stay spiritually awake, to recall his steady three-year pattern of personal, persistent, round-the-clock, tear-soaked warning. The verse charges every believer—especially those who lead—to guard the flock through alertness, memory of faithful examples, patient perseverance, constant engagement, and genuine, loving concern.
(31) Therefore watch . . .--The word was, as it were, an echo from our Lord's teaching (Matthew 24:42; Matthew 25:13, et al.), which could hardly have been unknown to St. Paul. Here, however, it receives a fresh significance from its connection with the term episcopi. They who were the bishops, the overseers, the watchers of the flock, ought, above all others, to set an example of vigilance.By the space of three years.--Strictly speaking, the narrative of the Acts accounts for three months' preaching in the synagogue (Acts 19:8), two years in the school of Tyrannus (Acts 19:10), and an undefined period embracing the time immediately before and after the tumult of Demetrius. This would be enough to warrant him describing the time of his ministry, speaking roughly, as extending over three years.
To warn every one night and day with tears.--Comp. Note on Acts 20:19. . . .
Verse 31. - Wherefore watch ye for therefore watch, A.V.; remembering for and remember, A.V.; admonish for warn, A.V. By the space of three years (τριετίαν). The word is only found here in the New Testament; but it is used in the LXX. of Isaiah 15:5 and 2 Chronicles 31:16, and in classical Greek. We have here one of the few chronological data in the Acts. Three years includes the whole of his sojourn at Ephesus as his headquarters. There were first the three months during which he preached in the synagogue; then the two years which he spent in preaching in the school of Tyrannus, and which terminated with the incident of burning the books of magic (Acts 19:8, 10, 19). Then there was an indefinite time described in Acts 19:22 as "for a while" (αὐτὸς ἐπέσχε χρόνον), during which he was busy making plans, probably writing letters, sending off Timothy and Erastus to Macedonia, and perhaps making missionary expeditions in the neighborhood. This may have occupied three or four months longer, and made up a term of two years and six, seven, or eight months, which would quite justify the term τριετία. Every one. Each one separately, not merely the whole flock together. A weighty lesson for every one who has the cure of souls (comp. John 10:3). Night and day. The night is mentioned first, in accordance with Hebrew usage (Genesis 1:5, 8, 13, etc.; comp. the word νυχθήμερον in 2 Corinthians 11:25) St. Paul enforces the word "Watch," so appropriate to shepherds who watch over their flocks by night (Luke 2:8), by his own example of admonishing by night as well as day.