'Saith' in the Bible

Go and tell my servant David, Thus saith Jehovah, Shalt thou build me a house for me to dwell in?

Now therefore thus shalt thou say unto my servant David, Thus saith Jehovah of hosts, I took thee from the sheepcote, from following the sheep, that thou shouldest be prince over my people, over Israel;

And Nathan said to David, Thou art the man. Thus saith Jehovah, the God of Israel, I anointed thee king over Israel, and I delivered thee out of the hand of Saul;

Thus saith Jehovah, Behold, I will raise up evil against thee out of thine own house; and I will take thy wives before thine eyes, and give them unto thy neighbor, and he shall lie with thy wives in the sight of this sun.

And the king said, Whosoever saith aught unto thee, bring him to me, and he shall not touch thee any more.

Then said Absalom, Call now Hushai the Archite also, and let us hear likewise what he saith.

Now these are the last words of David. David the son of Jesse saith, And the man who was raised on high saith, The anointed of the God of Jacob, And the sweet psalmist of Israel:

Go and speak unto David, Thus saith Jehovah, I offer thee three things: choose thee one of them, that I may do it unto thee.