“new wine.” The joy that the new wine brings is more the joy of the harvest than the joy of inebriation.

“that cheers God.” There were wine and oil offerings to God, but more likely than that, God is joyful at the abundance His creation produces to bless humankind. Although the Hebrew can read “God” or “gods,” and some versions go with “gods,” that seems less likely here because Jotham was a godly man, and mentioning offerings to the “gods” seems out of his social context.