John 18:9

This happened so that the words which he had spoken would be fulfilled, "Of those whom you gave me I have lost none."

John 17:12

While I was with them, I kept them in your name the name you gave me. I have guarded them, and none of them is lost except the son of perdition, that the Scripture might be fulfilled.

Treasury of Scripture Knowledge

Summary

That the saying might be fulfilled, which he spake, Of them which thou gavest me have I lost none.

Bible References

Of

John 17:12
While I was with them, I kept them in your name the name you gave me. I have guarded them, and none of them is lost except the son of perdition, that the Scripture might be fulfilled.