John 9:15
so the Pharisees again began to ask him questions about how he had regained his sight; and he said to them, "He put clay on my eyes, and I washed them, and now I see."
John 9:10-11
So they asked him, "How then were your eyes opened?"
John 9:26-27
"What was it he did to you?" they asked him; "How did he open your eyes?"
Treasury of Scripture Knowledge
Summary
And they asked Baruch, saying, Tell us now, How didst thou write all these words at his mouth?
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Bible References
Tell
John 9:10
So they asked him, "How then were your eyes opened?"