Now when the fourteenth night had come, as we were driven up and down in the Adriatic Sea, about midnight the sailors sensed that they were drawing near some land. 28 And they took soundings and found it to be twenty fathoms; and when they had gone a little farther, they took soundings again and found it to be fifteen fathoms. 29 Then, fearing lest we should run aground on the rocks, they dropped four anchors from the stern, and prayed for day to come. 30 And as the sailors were seeking to escape from the ship, when they had let down the skiff into the sea, under pretense of putting out anchors from the prow, 31 Paul said to the centurion and the soldiers, “Unless these men stay in the ship, you cannot be saved.” 32 Then the soldiers cut away the ropes of the skiff and let it fall off. — Acts 27:27-32.
After the fourteenth night, the sailors know they are getting close to land and make an attempt to commandeer the skiff, which is, in effect, their lifeboat. Paul draws this to the centurion’s attention and the lifeboat is cut off and released. This action will ultimately lead to all Paul’s shipmates being saved. [Source: The Bible Panorama.]