Charles Spurgeon Commentary Mark 15:39

"And when the centurion, who stood by over against him, saw that he so gave up the ghost, he said, Truly this man was the Son of God." — Mark 15:39 (ASV)

And when the centurion, which stood over against him, saw that he so cried out, and gave up the ghost, he said, Truly this man was the Son of God.

Convinced by the cross. Oh, the triumphs of Christ! The last word he speaks won this testimony from the centurion in charge of the crucifixion. Now we will read part of Luke's narrative.

Saw that he so cried out, and gave up the ghost, he said, Truly this man was the Son of God.

Probably saying a great deal more than he understood. There was something so extraordinary about this central Sufferer that the Centurion could not understand who he could be unless he was truly "the Son of God."