Mark 14:44

Now he who had been false to him had given them a sign, saying, The one to whom I give a kiss, that is he; take him, and get him away safely.

Exodus 12:13

And the blood will be a sign on the houses where you are: when I see the blood I will go over you, and no evil will come on you for your destruction, when my hand is on the land of Egypt.

Joshua 2:12

So now, will you give me your oath by the Lord, that, because I have been kind to you, you will be kind to my father's house,

1 Samuel 23:22-23

Go now, and take more steps, and see where he is living: for they say that he is expert in deceit.

2 Samuel 20:9-10

And Joab said to Amasa, Is it well, my brother? And with his right hand he took him by the hair of his chin to give him a kiss.

Psalm 55:20-21

He has put out his hand against those who were at peace with him; he has not kept his agreement.

Proverbs 27:6

The wounds of a friend are given in good faith, but the kisses of a hater are false.

Matthew 26:48-50

Now the false one had given them a sign saying, The one to whom I give a kiss, that is he: take him.

Acts 16:23

And when they had given them a great number of blows, they put them in prison, giving orders to the keeper of the prison to keep them safely:

Philippians 1:28

Having no fear of those who are against you; which is a clear sign of their destruction, but of your salvation, and that from God;

2 Thessalonians 3:17

These words of love to you at the end are in my writing, Paul's writing, and this is the mark of every letter from me.

Treasury of Scripture Knowledge

Summary

And he that betrayed him had given them a token, saying, Whomsoever I shall kiss, that same is he; take him, and lead him away safely.

Bible References

A token

Exodus 12:13
And the blood will be a sign on the houses where you are: when I see the blood I will go over you, and no evil will come on you for your destruction, when my hand is on the land of Egypt.
Joshua 2:12
So now, will you give me your oath by the Lord, that, because I have been kind to you, you will be kind to my father's house,
Philippians 1:28
Having no fear of those who are against you; which is a clear sign of their destruction, but of your salvation, and that from God;
2 Thessalonians 3:17
These words of love to you at the end are in my writing, Paul's writing, and this is the mark of every letter from me.

Whomsoever

2 Samuel 20:9
And Joab said to Amasa, Is it well, my brother? And with his right hand he took him by the hair of his chin to give him a kiss.
Psalm 55:20
He has put out his hand against those who were at peace with him; he has not kept his agreement.
Proverbs 27:6
The wounds of a friend are given in good faith, but the kisses of a hater are false.
Matthew 26:48
Now the false one had given them a sign saying, The one to whom I give a kiss, that is he: take him.

And lead

1 Samuel 23:22
Go now, and take more steps, and see where he is living: for they say that he is expert in deceit.
Acts 16:23
And when they had given them a great number of blows, they put them in prison, giving orders to the keeper of the prison to keep them safely:

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