1 Thessalonians 5:2

“For yourselves know perfectly, etc.] With great exactness and accuracy, with great clearness and perspicuity, as a certain truth, which was made plain and evident to them, and about which there could be no question; and which perfect knowledge they had, either from the words of Christ, (<402442>Matthew 24:42-44), or from the ministration of the apostle and his fellow labourers, when among them: that the day of the Lord; of the Lord Jesus, when he will show himself to be King of kings, and Lord of lords, and the Judge of the whole earth; and which is sometimes styled the day of the Son of man, and the day of God, for Christ will appear then most gloriously, both in his divine and human…”

“as a thief in the night--The apostles in this image follow the parable of their Lord, expressing how the Lord's coming shall take men by surprise (Mat 24:43; Pe2 3:10). "The night is wherever there is quiet unconcern" [BENGEL]. "At midnight" (perhaps figurative: to some parts of the earth it will be literal night), Mat 25:6. The thief not only gives no notice of his approach but takes all precaution to prevent the household knowing of it. So the Lord (Rev 16:15). Signs will precede the coming, to confirm the patient hope of the watchful believer; but the coming itself shall be sudden at last (Mat 24:32-36; Luk 21:25-32, Luk 21:35).”

“For yourselves know perfectly - That is, they had been fully taught this. There could be no doubt in their minds respecting it. The day of the Lord so cometh - Of the Lord Jesus - for so the word “Lord” in the New Testament commonly means; see the notes, Acts 1:24. The “day of the Lord” means that day in which he will be manifested, or in which he will be the prominent object in view of the assembled universe. As a thief in the night - Suddenly and unexpectedly, as a robber breaks into a dwelling. A thief comes without giving any warning, or any indications of his approach. He not only gives none, but he is careful that none shall be given. It is a point with him that, if possible, the man…”

“For this in general ye do know; and ye can and need know no more. 1 Thessalonians 5:3”

“5:2 For you know quite well: Paul reminds them of the teaching they had already received (3:3-4). • The day of the Lord’s return is the time when God will come to judge humanity (Isa 13:6, 9; Ezek 30:3) and save his people (Joel 2:21-32; 3:18; Zech 14). • like a thief in the night: Cp. Matt 24:43-44; Luke 12:39-40; 2 Pet 3:10; Rev 3:3; 16:15.”

“know: Jer 23:20 the day: Mat 24:42-44, Mat 25:13; Mar 13:34, Mar 13:35; Luk 12:39, Luk 12:40; Pe2 3:10; Rev 3:3; Rev 16:15 1 Thessalonians 5:3”