Mark 11:27-29 New American Bible, Revised Edition (NABRE)

27. They returned once more to Jerusalem. As he was walking in the temple area, the chief priests, the scribes, and the elders approached him

28. and said to him, “By what authority are you doing these things? Or who gave you this authority to do them?”

29. Jesus said to them, “I shall ask you one question. Answer me, and I will tell you by what authority I do these things.

Mark 11