2 Samuel 19:18

And there went over a ferry boat to carry over the king's
household
His wives and children, who could not so well ford the river on foot: some will have this to be a bridge of boats, a pontoon; and Abarbinel thinks it might be a company of men, who carried the women and children on their shoulders, one after another:

and to do what he thought good;
to carry over whatever else the king pleased, besides his family:

and Shimei the son of Gera fell down before the king, as he was come
over Jordan;
or just as he was about to come over, when he came to Jordan to take the boat in order to come over; for he went over Jordan to meet him, and therefore would take the first opportunity of coming into his presence, and fall down before him, and make his submission to him.