Luke
Acts 27:17ESV·traditional attribution

After hoisting it up, they used supports to undergird the ship. Then, fearing that they would run aground on the Syrtis, they lowered the gear, and thus they were driven along.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have, I. The ship putting to sea again, and pursuing her voyage at first with a promising gale. Observe, 1. What induced them to leave the fair havens: it was because they thought the harbour not commodious to winter in; it was pleasant enough in summer but in the winter they lay bleak.

Commenting on Acts 27:12-20

John Gill Reformed Baptist @doctorgill

Which when they had taken up,.... When they had got the boat into the ship: they used helps; the mariners made use of other persons, called in the assistance of the soldiers, and passengers, and prisoners; or for the help of the ship, they made use of cords, chains, and such like things: undergirding the ship: with cords and ropes, which they drew under the...

Albert Barnes Presbyterian @notesbybarnes

Verse 17. Which when they had taken up. When they had raised up the boat into the ship, so as to secure it. They used helps. They used ropes, cables, stays, or chains, for the purpose of securing the ship. The danger was, that the ship would be destroyed; and they, therefore, made use of such aids as should prevent the loss of the ship. Undergirding the ship.