New Living Translation
While they were eating, he said, “I tell you the truth, one of you will betray me.”

American Standard Version
and as they were eating, he said, Verily I say unto you, that one of you shall betray me.

Berean Study Bible
And while they were eating, He said to them, “Truly I tell you, one of you will betray Me.”

Douay-Rheims Bible
And whilst they were eating, he said: Amen I say to you, that one of you is about to betray me.

English Revised Version
and as they were eating, he said, Verily I say unto you, that one of you shall betray me.

King James Bible
And as they did eat, he said, Verily I say unto you, that one of you shall betray me.

World English Bible
As they were eating, he said, "Most certainly I tell you that one of you will betray me."

Young's Literal Translation
and while they are eating, he said, 'Verily I say to you, that one of you shall deliver me up.'

Matthew 26:21 Additional Translations ...