21 As they were eating, he said, “Most certainly I tell you that one of you will betray me.”
Matthew 26:21 Cross References - WEB
Psalms 55:12-14
12 For it was not an enemy who insulted me, then I could have endured it. Neither was it he who hated me who raised himself up against me, then I would have hidden myself from him.
13 But it was you, a man like me, my companion, and my familiar friend.
14 We took sweet fellowship together. We walked in God’s house with company.
Matthew 26:2
2 “You know that after two days the Passover is coming, and the Son of Man will be delivered up to be crucified.”
Matthew 26:14-16
Luke 22:21-23
John 6:70-71
John 13:21
21 When Jesus had said this, he was troubled in spirit, and testified, “Most certainly I tell you that one of you will betray me.”
Hebrews 4:13
13 There is no creature that is hidden from his sight, but all things are naked and laid open before the eyes of him to whom we must give an account.
Revelation 2:23
23 I will kill her children with Death, and all the assemblies will know that I am he who searches the minds and hearts. I will give to each one of you according to your deeds.