I made a cleric of Gond the other day, his domains were Fire and Knowledge, he took SF (Conjuration) and GSF (Conjuration) for his level 1 feats. Upon selecting Gond as his deity, a message popped up in my combat chat window: "[Divine Spell Failure Warning] Your deity (Gond) is a valid Forgotten Realms deity, but does not match your domains. Only characters with domains appropriate to their deities will be able to cast divine spells."
However, here on the forums domains that clerics of Gond may choose from are Earth, Fire, Knowledge and Metal.