'Children of Israel' in the Bible

But I have a few things against you, because you have there them that hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.

And I heard the number of them who were sealed: and there were sealed a hundred and forty and four thousand of all the tribes of the children of Israel.

And having a wall great and high, and having twelve gates, and at the gates twelve angels, and names written thereon, which are the names of the twelve tribes of the children of Israel: