'Children of Israel' in the Bible

But I have a few things against you; you have there those who hold the doctrine of Balaam, who taught Balak to put an occasion of sin before the children of Israel, both to eat things offered to idols and to commit fornication.

And I heard the number of the sealed, a hundred and forty-four thousand were sealed from every tribe of the children of Israel.

It had a great and high wall, it had twelve gates, and at the gates twelve angels, and names inscribed, which are the names of the twelve tribes of the children of Israel.