Njord is the God of the wind and fertility as well as the sea and merchants at sea and therefore was invoked before setting out to sea on hunting and fishing expeditions. He is also known to have the ability to calm the waters as well as fire.
Njord, one of the Vanir gods, was first married to his sister Nerthus and had two children with her, Frey and Freyja. His second wife was Skadi (Skade), a Giantess. When Skadi’s father was killed by the Aesir she was granted three “acts” of reparation one of which was to let her choose a husband from among the gods. She was allowed to pick her new husband but the choice had to be made by looking only at the feet. She picked Njord by mistake, assuming his feet belonged to Balder.
Njord and Skadi could not agree on where to live. She didn’t like his home Noatun at the Sea, and he didn’t like hers Trymheim, in the mountain with large woods and wolves, so they lived the first half of the year in Noatun and the other half in Trymheim.
Njord is said to be a future survivor of Ragnarök in stanza 39 of the poetic Edda:
“In Vanaheim the wise Powers made him and gave him as hostage to the gods; at the doom of men he will come back home among the wise Vanir.”