'Sons of Israel' in the Bible

Nevertheless, I have against thee, a few things, - that thou hast there, such as hold fast the teaching of Balaam, - who went on to teach Balak to throw a cause of stumbling before the sons of Israel, to eat idol-sacrifices and to commit lewdness:

And I heard the number of the sealed, - a hundred and forty-four thousand, - sealed out of every tribe of the sons of Israel: -

having a wall great and high, having twelve gates, and, at the gates, twelve messengers, and names inscribed, which are the names of the twelve tribes of the sons of Israel, -