When John the Baptist and the Lord Jesus Christ appeared on earth, God’s people had been under the law of Moses for fifteen hundred years. Little wonder John and his Master looked for fruit among them.
When the hypocritical religious leaders came to join John’s growing audience and asked to be baptized, John called them a “generation of vipers” and bade them “bring forth… fruits meet for repentance” (Matt. 3:7,8). True repentance, with fruit to prove it, was the basic requirement of the kingdom John proclaimed. This is evident from his declaration:
“And now also the axe is laid unto the root of the trees: therefore every tree which bringeth not forth good fruit is hewn down, and cast into the fire” (Matt. 3:10).
Our Lord appeared, proclaiming the same message as John, and also sought for fruit among His people (Matt. 7: 16-20; 21:33-43). We know, however, that John the Baptist was beheaded and Christ crucified. The fruit produced under the Law was meager indeed. Even after the resurrection of Christ the majority of His people refused to repent and failed to bring forth the required fruit.
But what the Law requires grace provides. It was at this time that God raised up the Apostle Paul, whose “preaching of the cross” showed that Christ had not died an untimely death, but in infinite love had come into the world to die for sinners so that they might be saved by grace, through faith (Eph. 2:8,9). Paul’s message was called “the gospel [good news] of the grace of God” (Acts 20:24), and where the Law had failed to bring forth fruit, grace brought it forth abundantly.
God’s grace in Christ, when accepted in true faith, always brings forth good fruit. Accept God’s message of grace, trust in Christ as your Savior and He will help you to produce the fruit. source