What is the meaning of Matthew 3:8?

Bring forth therefore fruits meet for repentance: (Matthew 3:8 KJV)

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

Produce therefore fruit worthy of repentance. (Matthew 3:8 DBY)

Therefore bring forth fruit worthy of repentance! (Matthew 3:8 WEB)

bear, therefore, fruits worthy of the reformation, (Matthew 3:8 YLT)

Interlinear KJV

Mt 3:8 Bring forth /poieo/ therefore /oun/ fruits /karpos/ meet /axios/ for repentance: /metanoia/ {meet…: or, answerable to amendment of life}

Albert Barnes’ Commentary

Verse 8.  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 dissimulation to this work; carry not your hypocrisy into your professed repentance; but evince your sincerity by forsaking sins, and thus give evidence that this crowding to Jordan Is not some act of dissimulation. No discourse could have been more appropriate or more cutting.  

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

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

Ripley 4 Gospels

Fruits. This word, as applied to men, is equivalent to the term conduct or course of life.

Meet for repentance; consistent with repentance, or suited to repentance. Let your lives henceforth be such as will be consistent with repentance, and suitable for persons who profess reformation of heart and life. John prescribes the same rule which the Saviour afterwards so distinctly maintained (Mt 7:20)-By their fruits ye shall know them. Let us never forget, that a merely external profession of piety is utterly valueless.

Mt ch 3Mt 3:1Mt 3:2Mt 3:3Mt 3:4Mt 3:5Mt 3:6Mt 3:7Mt 3:8
Mt 3:9Mt 3:10Mt 3:11Mt 3:12Mt 3:13Mt 3:14Mt 3:15Mt 3:16Mt 3:17