Revelation 7:3-4

7:3 “Do not damage the earth or the sea or the trees until we have put a seal on the foreheads of the servants of our God.” 7:4 Now I heard the number of those who were marked with the seal, one hundred and forty-four thousand, sealed from all the tribes of the people of Israel:

Revelation 14:1

An Interlude: The Song of the 144,000

14:1 Then I looked, and here was the Lamb standing on Mount Zion, and with him were one hundred and forty-four thousand, who had his name and his Father’s name written on their foreheads.

Exodus 12:23

12:23 For the Lord will pass through to strike Egypt, and when he sees the blood on the top of the doorframe and the two side posts, then the Lord will pass over the door, and he will not permit the destroyer to enter your houses to strike you.

Job 2:6

2:6 So the Lord said to Satan, “All right, he is in your power; only preserve his life.”

Ezekiel 9:4

9:4 The Lord said to him, “Go through the city of Jerusalem and put a mark on the foreheads of the people who moan and groan over all the abominations practiced in it.”

Ezekiel 9:6

9:6 Old men, young men, young women, little children, and women – wipe them out! But do not touch anyone who has the mark. Begin at my sanctuary!” So they began with the elders who were at the front of the temple.

Ephesians 4:30

4:30 And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.