John 18:9

This was to fulfill and verify the words He had spoken, “Of those whom You have given Me, I have not lost even one.”

John 17:12

While I was with them, I was keeping them in Your name which You have given Me; and I guarded them and protected them, and not one of them was lost except the son of destruction, so that the Scripture would 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 was keeping them in Your name which You have given Me; and I guarded them and protected them, and not one of them was lost except the son of destruction, so that the Scripture would be fulfilled.