Deuteronomy 14:1

For ye are all the children of God by faith in Christ Jesus.

That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.

They shall not make baldness upon their head, neither shall they shave off the corner of their beard, nor make any cuttings in their flesh.

And it shall come to pass, that in the place where it was said unto them, Ye are not my people; there shall they be called the children of the living God.

Yet the number of the children of Israel shall be as the sand of the sea, which cannot be measured nor numbered; and it shall come to pass, that in the place where it was said unto them, Ye are not my people, there it shall be said unto them, Ye are the sons of the living God.

The Spirit itself beareth witness with our spirit, that we are the children of God:

That there came certain from Shechem, from Shiloh, and from Samaria, even fourscore men, having their beards shaven, and their clothes rent, and having cut themselves, with offerings and incense in their hand, to bring them to the house of the LORD.

For it became him, for whom are all things, and by whom are all things, in bringing many sons unto glory, to make the captain of their salvation perfect through sufferings.

Both the great and the small shall die in this land: they shall not be buried, neither shall men lament for them, nor cut themselves, nor make themselves bald for them:

But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:

But I said, How shall I put thee among the children, and give thee a pleasant land, a goodly heritage of the hosts of nations? and I said, Thou shalt call me, My father; and shalt not turn away from me.

And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.

And not for that nation only, but that also he should gather together in one the children of God that were scattered abroad.

That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.

There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.

But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope.

Baldness is come upon Gaza; Ashkelon is cut off with the remnant of their valley: how long wilt thou cut thyself?