'Establish' in the Bible

Do we then make void the law through faith? God forbid: yea, we establish the law.

For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.

And sent Timotheus, our brother, and minister of God, and our fellowlabourer in the gospel of Christ, to establish you, and to comfort you concerning your faith:

Then said he, Lo, I come to do thy will, O God. He taketh away the first, that he may establish the second.