'Grain Offering' in the Bible

About the time for the grain offering the next morning, water suddenly came from the direction of Edom and filled the land.

Then he offered his burnt offerings and his grain offerings, he poured his libations and dashed the blood of his fellowship offerings against the altar.

Then King Ahaz commanded Uriah the priest, saying, "On the great altar burn the morning burnt offering and the grain offering of the evening, the burnt offering of the king and his grain offering, the burnt offering of all of the people of the land, their offerings, their libations, and all of the blood of the burnt offerings, the blood of the sacrifices you must dash on it. But the bronze altar shall be for me to inquire [by]."