A.T. Robertson Commentary Luke 23:37

"and saying, If thou art the King of the Jews, save thyself." — Luke 23:37 (ASV)

If (ε). Condition of the first class as is text in verse 35 used by the rulers. The soldiers pick out "the king of the Jews" as the point of their sneer, the point on which Jesus was condemned. But both soldiers and rulers fail to understand that Jesus could not save himself if he was to save others.