Verses with the word obeyeth in the Old Testament (3 verses):

Isaiah 50:10
Who is among you that feareth the LORD, that obeyeth the voice of his servant, that walketh in darkness, and hath no light? let him trust in the name of the LORD, and stay upon his God.

Jeremiah 7:28
But thou shalt say unto them, This is a nation that obeyeth not the voice of the LORD their God, nor receiveth correction: truth is perished, and is cut off from their mouth.

Jeremiah 11:3
And say thou unto them, Thus saith the LORD God of Israel; Cursed be the man that obeyeth not the words of this covenant,