Peter asked Jesus just how many times he had to forgive someone, and he used the Old Testament number of seven. (Genesis 4:24) But Jesus answered Peter’s question by saying, “I tell you, not seven times, but seventy-seven times.” So it’s not really about numbers, it’s more about our response to that transgression against us. When we forgive someone, we’re letting go of resentment…we’re refusing to take offense…and we’re not allowing a root of bitterness to grow. For just as God forgives us, we must forgive others. (Matthew 6:14-15)
Cain had worked the soil, giving the Lord grain offerings…while Abel kept flocks, giving the Lord fat portions from the animals. On Abel’s offerings God looked favorably, while on Cain’s He did not. But it may have had nothing to do with the physical offerings themselves, but rather in the men’s attitude bringing it before God. Attitude we see here in this verse when God asks Cain where his brother is…(as if God didn’t already know what had happened.) God was testing Cain to see if he would be honest and take responsibility for his actions…but instead, Cain retorted back to God with lies and anger.