'Children' in the Bible

The Spirit itself bears witness with our spirit, that we are children of God.

And if children, heirs also: heirs of God, and Christ's joint heirs; if indeed we suffer with him, that we may also be glorified with him.

that the creature itself also shall be set free from the bondage of corruption into the liberty of the glory of the children of God.

nor because they are seed of Abraham are all children: but, In Isaac shall a seed be called to thee.

That is, they that are the children of the flesh, these are not the children of God; but the children of the promise are reckoned as seed.

the children indeed being not yet born, or having done anything good or worthless (that the purpose of God according to election might abide, not of works, but of him that calls),

But Esaias cries concerning Israel, Should the number of the children of Israel be as the sand of the sea, the remnant shall be saved: