John Gill Commentary Judges 7:2

"And Jehovah said unto Gideon, The people that are with thee are too many for me to give the Midianites into their hand, lest Israel vaunt themselves against me, saying, Mine own hand hath saved me." — Judges 7:2 (ASV)

And the Lord said to Gideon, the people that are with you
are too many
It appears, by what follows, that there were 32,000 of them, which was but a small army to engage with one of 100,000 more than they; for such was the army of the Midianites and their associates, see (Judges 8:10) but the people were too many, says the Lord,

for me to give the Midianites into their hands ;
who would be apt to ascribe the victory to themselves, and not to the Lord; to their number, strength, and valour, and not to the hand of the Lord:

lest Israel vaunt themselves against me, saying, my own hand has
saved me ;
or glory over me, take the glory from me, and ascribe it to themselves, boasting that by their power and prowess they had obtained the victory.