Balaam is most famous for his supernatural dialogue with a donkey, but he also blessed Israel when he was being bribed to curse them:
Behold, I have received commandment to bless: and he hath blessed; and I cannot reverse it. He hath not beheld iniquity in Jacob, neither hath he seen perverseness in Israel: the LORD his God is with him, and the shout of a king is among them. God brought them out of Egypt; he hath as it were the strength of an unicorn. Surely there is no enchantment against Jacob, neither is there any divination against Israel: according to this time it shall be said of Jacob and of Israel, What hath God wrought! Behold, the people shall rise up as a great lion, and lift up himself as a young lion: he shall not lie down until he eat of the prey, and drink the blood of the slain. (Numbers 23:20-24)
Dake comments on this text on page 187 of The Dake Annotated Reference Bible: