Verses with the word gethsemane in the New Testament (2 verses):

Matthew 26:36
Then cometh Jesus with them unto a place called Gethsemane, and saith unto the disciples, Sit ye here, while I go and pray yonder.

Mark 14:32
And they came to a place which was named Gethsemane: and he saith to his disciples, Sit ye here, while I shall pray.