Verses with the word addeth in the Old Testament (3 verses):
Job 34:37
For he addeth rebellion unto his sin, he clappeth his hands among us, and multiplieth his words against God.
Proverbs 10:22
The blessing of the LORD, it maketh rich, and he addeth no sorrow with it.
Proverbs 16:23
The heart of the wise teacheth his mouth, and addeth learning to his lips.
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