When the Children of Israel crossed the Red Sea and ran out of food, they had brought with them, the Lord provided them with manna. Manna was an edible substance which God provided for the Israelites during their travels in the desert during the 40-year period following the Exodus and prior to the conquest of Canaan. In translation manna means "What is it?" We are provided with several descriptions of manna.
#1 Exodus 16:14 - "When the dew evaporated, a flaky substance as fine as frost blanketed the ground."
#2 Exodus 16:31 - "The Israelites called the food manna. It was white like coriander seed, and it tasted like honey wafers."
#3 Numbers 11:7 - "The manna looked like small coriander seeds, and it was pale yellow like gum resin."
The people cried out, for the lack of food and God told Moses he would rain down bread from heaven for the people. That evening quail came and covered the camp. The people killed the birds and ate their meat. The next morning, when the dew evaporated, a white substance covered the ground. Manna! Don't miss this. God provided! The people didn't request it.
God will provide what we need. However, a short time later, (Numbers 11:1-9) The Children of Israel, grew tired of the manna. Here, God has provided them with something they didn't have. The Lord had blessed them with substance and now they are complaining. "The children of Israel also wept again and said: " . . . There is nothing at all except this manna!"
Let us not be as the Children of Israel and take God's blessing for granted. Many times we are in awe of the blessings of God, in the beginning, but then begin to complain. Let's not complain about the manna, The Lord has blessed us with.