What is the meaning of Matthew 27:54?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

When the centurion and those with him who were guarding Jesus saw the earthquake and all that had happened, they were terrified and said, “Truly this was the Son of God.”

Berean Standard Bible (BSB)

Now the centurion, and those who were with him watching Jesus, when they saw the earthquake, and the things that were done, feared exceedingly, saying, “Truly this was the Son of God.”

World English Bible (WEB)

Now{G1161} when the centurion{G1543}, and{G2532} they that were with{G3326} him{G846}, watching{G5083}{(G5723)} Jesus{G2424}, saw{G1492}{(G5631)} the earthquake{G4578}, and{G2532} those things that were done{G1096}{(G5637)}, they feared{G5399}{(G5675)} greatly{G4970}, saying{G3004}{(G5723)}, Truly{G230} this{G3778} was{G2258}{(G5713)} the Son{G5207} of God{G2316}.

Strong's King James

(54) Now the centurion and those with him who were keeping guard over Yeshua saw the earthquake and the events happening. They became extremely frightened saying, "Surely this was God's Son."

The F.O.G*

[54] When the centurion and others guarding Jesus saw the earthquake and all that happened, they were terrified and exclaimed, "Surely He was the Son of God!" – Roman soldiers becoming unexpected witnesses to divine truth.

The F.O.G Paraphrase

And the centurion, and those with him watching Jesus, having seen the earthquake, and the things that were done, were exceedingly afraid, saying, ‘Truly this was God’s Son.’

Young's Literal Translation