'Saith' in the Bible

Say unto them, As truly as I live, saith the LORD, as ye have spoken in mine ears, so will I do to you:

And Moses sent messengers from Kadesh unto the king of Edom, Thus saith thy brother Israel, Thou knowest all the travail that hath befallen us:

And they came to Balaam, and said to him, Thus saith Balak the son of Zippor, Let nothing, I pray thee, hinder thee from coming unto me:

If Balak would give me his house full of silver and gold, I cannot go beyond the commandment of the LORD, to do either good or bad of mine own mind; but what the LORD saith, that will I speak?

But thy servants will pass over, every man armed for war, before the LORD to battle, as my lord saith.