Romans 11:13-24 (KJV) For I speak to you Gentiles since I am the apostle of the Gentiles, I magnify mine office: 14 If by any means I may provoke to emulation them which are my flesh, and might save some of them. 15 For if the casting away of them be the reconciling of the world, what shall the receiving of them be, but life from the dead? 16 For if the firstfruit be holy, the lump is also holy: and if the root is holy, so are the branches. 17 And if some of the branches be broken off, and thou, being a wild olive tree, were grafted in among them, and with them partakest of the root and fatness of the olive tree; 18 Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee. 19 Thou wilt say then, The branches were broken off, that I might be grafted in. 20 Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear: 21 For if God spared not the natural branches, take heed lest he also spares not thee. 22 Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off. 23 And they also, if they abide not still in unbelief, shall be grafted in: for God is able to graff them in again. 24 For if thou were cut out of the olive tree which is wild by nature, and were grafted contrary to nature into a good olive tree: how much more shall these, which be the natural branches, be grafted into their own olive tree?
1 John 3:1-3 (KJV) Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not. 2 Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is. 3 And every man that hath this hope in him purifies himself, even as he is pure.
Romans 8:12-17 (KJV) Therefore, brethren, we are debtors, not to the flesh, to live after the flesh. 13 For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live. 14 For as many as are led by the Spirit of God, they are the sons of God. 15 For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father. 16 The Spirit itself beareth witness with our spirit, that we are the children of God: 17 And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.
Galatians 4:1-7 (KJV) Now I say, That the heir, as long as he is a child, differeth nothing from a servant, though he is lord of all; 2 But is under tutors and governors until the time appointed of the father. 3 Even so we, when we were children, were in bondage under the elements of the world: 4 But when the fulness of the time had come, God sent forth his Son, made of a woman, made under the law, 5 To redeem them that were under the law, that we might receive the adoption of sons. 6 And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father. 7 Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.