'Keep' in the Bible

Will he retain his anger for ever? will he keep it to the end? Behold, thou hast spoken and hast done evil things, and hast had thy way.

Go, and proclaim these words toward the north, and say, Return, thou backsliding Israel, saith Jehovah; I will not look in anger upon you; for I am merciful, saith Jehovah, I will not keep anger for ever.

Hear the word of Jehovah, O ye nations, and declare it in the isles afar off; and say, He that scattered Israel will gather him, and keep him, as shepherd doth his flock.

Then Jeremiah the prophet said unto them, I have heard you; behold, I will pray unto Jehovah your God according to your words; and it shall come to pass that whatsoever thing Jehovah shall answer you, I will declare it unto you; I will keep nothing back from you.