John 18:2

And Judas, who was false to him, had knowledge of the place because Jesus went there frequently with his disciples.

Luke 21:37

And every day he was teaching in the Temple and every night he went out to the mountain which is named the Mountain of Olives to take his rest.

Luke 22:39

And he came out, and went, as his way was, to the Mountain of Olives, and the disciples went with him.

Mark 11:11-12

And he went into Jerusalem into the Temple; and after looking round about on all things, it being now evening, he went out to Bethany with the twelve.

Treasury of Scripture Knowledge

Summary

And Judas also, which betrayed him, knew the place: for Jesus ofttimes resorted thither with his disciples.

General references

Bible References

For

Mark 11:11
And he went into Jerusalem into the Temple; and after looking round about on all things, it being now evening, he went out to Bethany with the twelve.
Luke 21:37
And every day he was teaching in the Temple and every night he went out to the mountain which is named the Mountain of Olives to take his rest.
Luke 22:39
And he came out, and went, as his way was, to the Mountain of Olives, and the disciples went with him.

General references

Mark 14:42
Get up, let us be going; see, he who gives me up is near.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain