Verses with the word forbearing in the Old Testament (2 verses):

Proverbs 25:15
By long forbearing is a prince persuaded, and a soft tongue breaketh the bone.

Jeremiah 20:9
Then I said, I will not make mention of him, nor speak any more in his name. But his word was in mine heart as a burning fire shut up in my bones, and I was weary with forbearing, and I could not stay.