'Keep' in the Bible

"I tell you, keep asking, and it will be given you. Keep seeking, and you will find. Keep knocking, and it will be opened to you.

But he said, "On the contrary, blessed are those who hear the word of God, and keep it."

He said to them, "Beware! Keep yourselves from covetousness, for a man's life doesn't consist of the abundance of the things which he possesses."