John 13:25

He leaned back accordingly against Jesus' chest [and] said to him, "Lord, who is it?"

John 21:20

Peter turned [and] saw the disciple whom Jesus loved following [them] (who also leaned back on his chest at the dinner and said, "Lord, who is the one betraying you?")

Genesis 44:4-12

They went out of the city, [and] had not gone far when Joseph said to [the one] who [was] over his house, "Arise! Pursue after the men and overtake them. Then you shall say to them, 'Why have you repaid evil for good?

Esther 7:5

And King Ahasuerus said to Queen Esther, "Who [is] he, and where [is] he, who {gave himself the right to do this}?"

Treasury of Scripture Knowledge

Summary

He then lying on Jesus' breast saith unto him, Lord, who is it?

General references

Bible References

Who

Genesis 44:4
They went out of the city, [and] had not gone far when Joseph said to [the one] who [was] over his house, "Arise! Pursue after the men and overtake them. Then you shall say to them, 'Why have you repaid evil for good?
Esther 7:5
And King Ahasuerus said to Queen Esther, "Who [is] he, and where [is] he, who {gave himself the right to do this}?"

General references

Matthew 26:22
And greatly distressed, each one began to say to him, "{Surely I am not he, am I}, Lord?"
Luke 22:23
And they began to debate with one another who then of them it could be who was going to do this.