Charles H. Spurgeon on Psalms 106:9

He rebuked. We do not read that any voice was sent forth from heaven to rebuke the sea; but he hath called the Divine Power by which this was effected, a rebuke, unless indeed any one may choose to say, that the sea was secretly rebuked, so that the waters might hear, and yet men could not. The power by which God acts is very abstruse and mysterious, a power by which he causeth that even things devoid of sense instantly obey at his will. Augustine.