'Children' in the Bible

And not being feeble in faith though his body seemed to him little better than dead (he being about a hundred years old) and Sarah was no longer able to have children:

The Spirit is witness with our spirit that we are children of God:

And if we are children, we have a right to a part in the heritage; a part in the things of God, together with Christ; so that if we have a part in his pain, we will in the same way have a part in his glory.

That all living things will be made free from the power of death and will have a part with the free children of God in glory.

And they are not all children because they are the seed of Abraham; but, In Isaac will your seed be named.

That is, it is not the children of the flesh, but the children of God's undertaking, who are named as the seed.

Before the children had come into existence, or had done anything good or bad, in order that God's purpose and his selection might be effected, not by works, but by him whose purpose it is,

And Isaiah says about Israel, Even if the number of the children of Israel is as the sand of the sea, only a small part will get salvation: