Albert Barnes Commentary Matthew 3:8

"Bring forth therefore fruit worthy of repentance:" — Matthew 3:8 (ASV)

Bring forth therefore fruits, etc. That is, the proper fruits of reformation, the proper evidence that you are sincere. Do not bring your cunning and pretense to this work; do not carry your hypocrisy into your professed repentance; but demonstrate your sincerity by forsaking sins, and thus give evidence that this crowding to Jordan is not some act of pretense. No discourse could have been more appropriate or more cutting.

Fruits. Conduct. See Matthew 7:16-19.

Meet for repentance. Fit for repentance; appropriate to it—the proper expression of repentance.