The phrase by their fruits is used four times:
(5:2.4) It is because of this God fragment that indwells you that you can hope, as you progress in harmonizing with the Adjuster’s spiritual leadings, more fully to discern the presence and transforming power of those other spiritual influences that surround you and impinge upon you but do not function as an integral part of you. The fact that you are not intellectually conscious of close and intimate contact with the indwelling Adjuster does not in the least disprove such an exalted experience. The proof of fraternity with the divine Adjuster consists wholly in the nature and extent of the fruits of the spirit which are yielded in the life experience of the individual believer. “By their fruits you shall know them.”
(140:3.19) “I warn you against false prophets who will come to you in sheep’s clothing, while on the inside they are as ravening wolves. By their fruits you shall know them. Do men gather grapes from thorns or figs from thistles? Even so, every good tree brings forth good fruit, but the corrupt tree bears evil fruit. A good tree cannot yield evil fruit, neither can a corrupt tree produce good fruit. Every tree that does not bring forth good fruit is presently hewn down and cast into the fire. In gaining an entrance into the kingdom of heaven, it is the motive that counts. My Father looks into the hearts of men and judges by their inner longings and their sincere intentions.
(140:4.7) “By their fruits you shall know them.” Personality is basically changeless; that which changes—grows—is the moral character. The major error of modern religions is negativism. The tree which bears no fruit is “hewn down and cast into the fire.” Moral worth cannot be derived from mere repression—obeying the injunction “Thou shalt not.” Fear and shame are unworthy motivations for religious living. Religion is valid only when it reveals the fatherhood of God and enhances the brotherhood of men.
(142:5.2) “As to my message and the teaching of my disciples, you should judge them by their fruits. If we proclaim to you the truths of the spirit, the spirit will witness in your hearts that our message is genuine. Concerning the kingdom and your assurance of acceptance by the heavenly Father, let me ask what father among you who is a worthy and kindhearted father would keep his son in anxiety or suspense regarding his status in the family or his place of security in the affections of his father’s heart? Do you earth fathers take pleasure in torturing your children with uncertainty about their place of abiding love in your human hearts? Neither does your Father in heaven leave his faith children of the spirit in doubtful uncertainty as to their position in the kingdom. If you receive God as your Father, then indeed and in truth are you the sons of God. And if you are sons, then are you secure in the position and standing of all that concerns eternal and divine sonship. If you believe my words, you thereby believe in Him who sent me, and by thus believing in the Father, you have made your status in heavenly citizenship sure. If you do the will of the Father in heaven, you shall never fail in the attainment of the eternal life of progress in the divine kingdom.