John Gill Commentary Numbers 23:16

"And Jehovah met Balaam, and put a word in his mouth, and said, Return unto Balak, and thus shalt thou speak." — Numbers 23:16 (ASV)

And the Lord met Balaam, and put a word in his mouth
As he did before, (Numbers 23:5) .

and said, go again to Balak, and say thus ;
the words expressed in (Numbers 23:18–24) .