'Children' in the Bible

Know therefore that those who are of faith, the same are children of Abraham.

For you are all children of God, through faith in Christ Jesus.

So we also, when we were children, were held in bondage under the elemental principles of the world.

that he might redeem those who were under the law, that we might receive the adoption of children.

And because you are children, God sent out the Spirit of his Son into your hearts, crying, "Abba, Father!"

My little children, of whom I am again in travail until Christ is formed in you --

These things contain an allegory, for these are two covenants. One is from Mount Sinai, bearing children to bondage, which is Hagar.

For this Hagar is Mount Sinai in Arabia, and answers to the Jerusalem that exists now, for she is in bondage with her children.

For it is written, "Rejoice, you barren who don't bear. Break forth and shout, you that don't travail. For more are the children of the desolate than of her who has a husband."

Now we, brothers, as Isaac was, are children of promise.

So then, brothers, we are not children of a handmaid, but of the free woman.