Revelation 7:2-4 New Life Version (NLV)
2 I saw another angel coming from the east. He was carrying the mark of the living God. He called with a loud voice to the four angels who had been given power to hurt the earth and sea. 3 The angel from the east said, “Do not hurt the earth or the sea or the trees until we have put the mark of God on the foreheads of the servants He owns.”
4 I heard how many there were who received the mark of God. There were 144,000 people of the twelve family groups of Israel.