As good trees bring forth good fruit and corrupt trees bring forth evil fruit (Mat 7:17), so those that profess the name of Christ are known by their fruit (Mat 7:20). A good tree doesn’t bring forth corrupt fruit (Luk 6:43). Those that have received and understand the Word will bear fruit in abundance (Mat 13:23). Those that don’t bring forth good fruit are hewn down and cast into the fire (Luk 3:9). Hear the cry of Jesus, “He that hath ears to hear, let him hear” (Luk 8:8) and be moved to work out your own salvation (Phi 2:12) and to perfect holiness in the fear of God (2Cor 7:1).
We increase in the fruit of the Spirit as we abide in Jesus the vine and he abides in us. Without the Lord Jesus we “can do nothing” (Joh 15:4). Christ must be the central theme of our life and we must look to him who is “the author and finisher of our faith” (Heb 12:2).
Christians must be careful that they are not choked with cares, riches, and pleasures of this world which will cause them to bring no fruit to perfection (Luk 8:14). They are to hunger, thirst, and be filled with the righteousness of God (Matt 5:6). The saved must be diligent to add the Fruit of the Spirit to their experience (2Pet 1:5-7).
When the Fruit of the Spirit is abounding in their life, they will be neither barren nor unfruitful, and they are promised that they will never fall into sin and that an entrance will be abundantly provided unto them into the eternal kingdom (2Pet 1:8-11).
To bring forth much fruit, you must die to yourself and your own wants (Joh 12:34) and live only to please the Lord Jesus, his children (Gal 6:10), and to love your neighbor as yourself (Mat 22:39). God will transform you by the renewing of your mind as you read the Word (Rom 10:17), pray in the Spirit (Jud 1:20), and prayerfully mediation on the scriptures (1Tim 4:13, 15).
Reading, prayer, and mediation builds faith and you gain victory over self, the flesh, and the world through this same faith (1Jon 5:4). To the degree you gain victory over self and the flesh you will increase in the Fruit of the Spirit. This victory can only come by abiding in Jesus, and to have his faith producing Word abide in you (Joh 15:7).
Wherever the pure gospel of Christ is taught or preached, it will bring forth fruit in the people. Gospel workers and ministers that lack fruit in their own lives will be found to be top heavy with head doctrine. Instead of teaching the two greatest commandments (Mar 12:30), they emphasize their own pet teachings. They will be a hindrance, instead of a help, in bringing people to Jesus and leading the saved into a deeper walk with Christ. For further reading see the article on the Fruit of the Spirit.