Sin can never be flippantly disregarded. If the Lord is just, and He is, He must mete out consequences for rebellion. The biblical descriptions of the Lord’s reaction to rebellion varies from “he will be wroth” (Joshua 22:18) to “then shall the hand of the LORD be against you” (1 Samuel 12:15) to “ye shall be devoured with the sword” (Isaiah 1:20) to “I will come up into the midst of thee in a moment, and consume thee” (Exodus 33:5) to “I will purge out from among you the rebels” (Ezekiel 20:38) to “I will even send a curse upon you, and I will curse your blessings” (Malachi 2:2). Though there are variations in the response, the constant truth remains that the Lord hates rebellion and responds to the rebellion with judgment.
Rebellion thrives upon the self-will of any individual or group of individuals. It parallels stubbornness, hard-heartedness, and a stiff neck. The first use of rebellion in the Bible indicates that it is a refusal to submit to the will or authority of another (Genesis 14:4; see also 2 Kings 18:7). Sometimes, rebellion may be the refusal to go at the command of another (Deuteronomy 1:26), while at other times, it is the refusal to stay (Deuteronomy 1:43). The point is that rebellion is a refusal on the part of a person or group to submit and yield to the rule of another. It involves a conscious decision to cease from following, and though there may be times when resistance needs to be made against the world, “God forbid that we should rebel against the LORD” (Joshua 22:29).
The Bible seems to point to Pharaoh most often as an example of someone with a heart hardened through sin and the deceitfulness of power and fame. Pharaoh's hardened heart led him from one rebellious act to the next. He constantly fought against the Lord and the Lord’s man. Even after all of the miracles in Egypt and the abundance of judgments, he chose to pursue the children of Israel as they departed from Egypt. Pharaoh's hardened heart led him to pursue them to the Red Sea. Out of all the troublesome effects of a hard heart, the most troubling aspect is that it refuses to hearken to the words of the Lord. On at least five occasions, the Lord makes this connection (Exodus 7:13, 22; Exodus 8:15, 19; Exodus 9:12). A hard heart closes the ears to the truth and sets the individual up for greater judgment.