And more than that, we ourselves, though we possess the Spirit as a foretaste and pledge of the glorious future, yet we ourselves inwardly sigh, as we wait and long for open recognition as sons through the deliverance of our bodies.
In the same way the Spirit also helps us in our weakness; for we do not know what prayers to offer nor in what way to offer them. But the Spirit Himself pleads for us in yearnings that can find no words,
In other words, it is not the children by natural descent who count as God's children, but the children made such by the promise are regarded as Abraham's posterity.
For the reason for our boasting is this–the testimony of our own conscience that it was in holiness and with pure motives before God, and in reliance not on worldly wisdom but on the gracious help of God, that we have conducted ourselves in the world, and above all in our relations with you.
And in Him you Gentiles also, after listening to the Message of the truth, the Good News of your salvation –having believed in Him– were sealed with the promised Holy Spirit;
See what marvellous love the Father has bestowed upon us –that we should be called God's children: and that is what we are. For this reason the world does not recognize us– because it has not known Him.
By this we can distinguish God's children and the Devil's children: no one who fails to act righteously is a child of God, nor he who does not love his brother man.
Dear friends, we are now God's children, but what we are to be in the future has not yet been fully revealed. We know that if Christ reappears we shall be like Him, because we shall see Him as He is.
We can know that we are continuing in union with Him and that He is continuing in union with us, by the fact that He has given us a portion of His Spirit.
He who believes in the Son of God has the testimony in his own heart: he who does not believe God has made Him a liar, in that he has refused to accept the testimony which God has given about His Son.