New Revised Standard Version
So he consented and began to look for an opportunity to betray him to them when no crowd was present.

Contemporary English Version
He agreed and started looking for a good chance to betray Jesus when the crowds were not around.

New American Bible
He accepted their offer and sought a favorable opportunity to hand him over to them in the absence of a crowd.

Douay-Rheims Bible
And he promised. And he sought opportunity to betray him in the absence of the multitude.

And he promised. And he sought opportunity to betray him in the absence of the multitude.

in the absence of the multitude.

Matthew 26:5 But they said: Not on the festival day, lest perhaps there should be a tumult among the people.

Mark 14:2 But they said: Not on the festival day, lest there should be a tumult among the people.