'Keep' in the Bible

Rouse yourself and keep awake, and strengthen those things which remain but have well-nigh perished; for I have found no doings of yours free from imperfection in the sight of My God.

Be mindful, therefore, of the lessons you have received and heard. Continually lay them to heart, and repent. If, however, you fail to rouse yourself and keep awake, I shall come upon you suddenly like a thief, and you will certainly not know the hour at which I shall come to judge you.

And when the seven peals of thunder had spoken, I was about to write down what they had said; but I heard a voice from Heaven which told me to keep secret all that the seven peals of thunder had said, and not write it down.

This made the Dragon furiously angry with the woman, and he went elsewhere to make war upon her other children--those who keep God's commandments and hold fast to the testimony of Jesus.

Here is an opportunity for endurance on the part of God's people, who carefully keep His commandments and the faith of Jesus!"