NET
15 and said, “Lord, have mercy on my son, because he has seizures and suffers terribly, for he often falls into the fire and into the water.
Darby
15 Lord, have mercy on my son, for he is lunatic, and suffers sorely; for often he falls into the fire and often into the water.
KJV
15 Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water.