"If you are the Son of God…" Lk.4:3 … Satan.
"If you are the Son of God…" Mt.27:40 … Passers by.
"If you are the Christ…" Lk.23:39 … One of the criminals.

If

They queried Your credentials, Lord.
Satan first, then passers by,
soldiers, dying crook,
sneering, jeering,
wanting of You what You would not do:
sidestep the cross.

Jesus, Master !
I a rebel once,
now throw no ‘ifs’ at You,
for You have long since won my heart,
my matchless Saviour !