Psalm 78:17-19 And they sinned yet more against him by provoking the Most High in the wilderness. And they tempted God in their heart by asking meat for their lust. Yea, they spake against God; they said, Can God furnish a table in the wilderness?
After God’s miraculous Deliverance, Protection, and Provision for His people in the Exodus and in the wilderness, and after bringing water out of the rock, they sinned yer more against God. They had already complained in unbelief and rebellion, and the Lord provided water, manna, and quail. Still they provoked, tempted, and spoke against God.
The sin in our hearts is so deep that even after we have received abundant grace and blessings we still sin more, want more, and blame God when everything is not right. Our sinful response to God’s salvation is to continue living thankless and selfish lives, complaining instead of thanking. It seems that no matter how kind and merciful God is, our sinful hearts still find things to complain about.
It is basic to our faith to believe that God is good, all the time. As Satan tempted Adam and Eve to disbelieve God’s full goodness, so we are tempted to think that God is not always so good as they say. It is hard to believe in and surrender to a God that we do not believe is perfectly good to us, but easy to entrust ourselves to a God we know to be good. For this reason we need to hear the gospel regularly and often to be believing and content.