Mark 14:18

And as they sat and did eat, Jesus said, Verily I say unto you, One of you which eateth with me shall betray me.
— Mark 14:18, King James Version

In other translations

World English Bible (WEB)

As they sat and were eating, Jesus said, "Most assuredly I tell you, one of you will betray me -- he who eats with me."

American Standard Version (ASV)

And as they sat and were eating, Jesus said, Verily I say unto you, One of you shall betray me, even he that eateth with me.

Young's Literal Translation (YLT)

and as they are reclining, and eating, Jesus said, 'Verily I say to you--one of you, who is eating with me--shall deliver me up.'