Explain how God calls us sons in the present tense. (This also calls into question those who claim the adoption as sons is future tense.)
Hebrews 12:5-7
And have you forgotten the exhortation that addresses you as sons? “My son, do not regard lightly the discipline of the Lord, nor be weary when reproved by him. For the Lord disciplines the one he loves, and chastises every son whom he receives.” It is for discipline that you have to endure. God is treating you as sons. For what son is there whom his father does not discipline?
I did not say we are not sons of God, for I believe we are begotten sons.
beloved, now, children of God are we, (We who have the Spirit of Adoption, the first-fruit of the Spirit) and it was not yet manifested what we shall be, and we have known that if he may be manifested, like him we shall be, because we shall see him as he is; and every one who is having this hope on him, doth purify himself, even as he is pure. 1 John 3:2,3 YLT
for ye did not receive a spirit of bondage again for fear, but ye did receive a spirit of adoption in which we cry, 'Abba -- Father.' The Spirit himself doth testify with our spirit, that we are children of God; and if children, also heirs, heirs, indeed, of God, and heirs together of Christ -- if, indeed, we suffer together, that we may also be glorified together. Rom 8:15-17 YLT
for the earnest looking out of the creation doth expect the revelation of the sons of God; Rom 8:19 YLT
but those accounted worthy to obtain that age, and the rising again that is out of the dead, neither marry, nor are they given in marriage; for neither are they able to die any more -- for they are like messengers -- and they are sons of God, being sons of the rising again. Luke 20:35,36 YLT
When will the heirs, indeed, become the inheritors, indeed?
And this I say, brethren, that flesh and blood the reign of God is not able to inherit, nor doth the corruption inherit the incorruption; lo, I tell you a secret; we indeed shall not all sleep, and we all shall be changed;1 Cor 15:50,51 YLT
When they are not able to die anymore.