John 18:2

Now Judas also, who betrayed him, knew the place: for frequently had Jesus consorted with his disciples there.

Luke 21:37

And during the day he continued teaching in the temple; but at night he went out, and lodged in the mountain called the mount of Olives.

Luke 22:39

And going out, he went, according to his custom, to the mount of Olives; and his disciples also followed him.

Mark 11:11-12

And Jesus entered into Jerusalem, and into the temple: and looking round about upon all things, it being now even-tide, he departed 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 Jesus entered into Jerusalem, and into the temple: and looking round about upon all things, it being now even-tide, he departed to Bethany with the twelve.
Luke 21:37
And during the day he continued teaching in the temple; but at night he went out, and lodged in the mountain called the mount of Olives.
Luke 22:39
And going out, he went, according to his custom, to the mount of Olives; and his disciples also followed him.

General references

Mark 14:42
arise, let us go; behold, the traitor approaches me.