John 8:10
When Jesus had lifted up himself, and saw none but the woman, he said unto her, Woman, where are those thine accusers? hath no man condemned thee?
Cross-reference
John 8:9
Parallel
John 8:9 describes the accusers leaving, which Jesus is now responding to in verse 10.
Isaiah 41:12
Allusion
Isaiah 41:12 says you will seek your contenders and not find them — exactly what Jesus observes when the accusers have vanished.