Albert Barnes Commentary Psalms 107:28

"Then they cry unto Jehovah in their trouble, And he bringeth them out of their distresses." — Psalms 107:28 (ASV)

Then they cry to the Lord in their trouble... — See Psalm 107:6, Psalms 107:13, Psalms 107:19. Sailors pray. If they do not pray elsewhere, they often do in a storm, when in danger of being wrecked and lost. A storm at sea brings hundreds on their knees who never prayed before—for they feel that their only help is in God, and that it is a fearful thing to die.

Then they do right. They do what ought to be done. But they do then only what people ought always to do, for it is as plain a duty to pray when we are in safety as when we are in danger; when sailing on a smooth sea as in a storm; when on the land as on the ocean.

People anywhere, and at any time may die; and people everywhere and at all times should, therefore, call upon God. Storms, tempests, fire, disease, and danger, only impel people to do what they should do always from higher motives, and when their motives will be likely to be more disinterested and pure.