Thematic Bible: Who God has sealed

After that I saw four angels standing at the four corners of the earth holding back the four winds of the earth, so that no wind should blow on the earth or on the sea or on any tree. Then I saw another angel ascend from the east with the seal of the living God, and he cried out in a loud voice to the four angels who had it in their power to harm the earth and the sea, "Do not harm the earth or the sea or the trees until we mark the slaves of our God on their foreheads." read more.
I heard that the number of those that were marked with the seal was 144,000. They were from every tribe of the children of Israel: