Regarding the Thief in the Night
1 Thessalonians 1:1
Paul, and Silvanus, and Timotheus, unto the church of the Thessalonians which is in God the Father and in the LORD Jesus Christ: Grace be unto you, and peace, from God our Father, and the LORD Jesus Christ.
1 Thessalonians 1:2
We give thanks to God always for you all, making mention of you in our prayers;
1 Thessalonians 1:3
Remembering without ceasing your work of faith, and labour of love, and patience of hope in our LORD Jesus Christ, in the sight of God and our Father;
1 Thessalonians 1:4
Knowing, brethren beloved, your election of God.
So we see that this is written to God's Elect.
1 Thessalonians 1:10
And to wait for his Son from heaven, whom he raised from the dead, even Jesus, which delivered us from the wrath to come.
1 Thessalonians 5:1
But of the times and the seasons, brethren, ye have no need that I write unto you.
God's Elect/Christians know the times and the seasons when the LORD comes as a thief in the night—It's after the false Christ (Antichrist) comes.
1 Thessalonians 5:2
For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.
1 Thessalonians 5:3
For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape.
It comes upon THEY and THEM (sudden destruction) not on us (God's Elect)
It comes upon those that worship Antichrist thinking he is Christ—to those the true Christ comes as a thief in the night.
1 Thessalonians 5:4
But ye, (Elect) brethren, are not in darkness, that that day should overtake you as a thief.
1 Thessalonians 5:5
Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness.
Matthew 24:36
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Matthew 24:42
Watch therefore: for ye know not what hour your Lord doth come.
Mark 13:32
But of that day and that hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father.
Mark 13:33
Take ye heed, watch and pray: for ye know not when the time is.
No one knows the instant, but God's Elect know the season.
Daniel 12:9-10
And he said, Go thy way, Daniel: for the words are closed up and sealed till the time of the end. Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.
Revelation 3:2
Be watchful, and strengthen the things which remain, that are ready to die: for I have not found thy works perfect before God.
Revelation 3:3
Remember therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt NOT WATCH, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
Revelation 16:15
Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.