Lodgeth (xenizetai). Present passive indicative of xenizō old verb from xenos, a stranger as a guest. So to entertain a guest as here or to surprise by strange acts (Act 17:20; 1Pe 4:4).
Whose (hōi). To whom, dative of possession.
By the seaside (para thalassan). Along by the sea. Note accusative case. Outside the city walls because a tanner and to secure water for his trade. Some tanneries are by the seashore at Jaffa today.