Does God have to forgive 70 x 7? Ezekiel 13-18

Most people, even non-believers, are familiar with Jesus words about forgiveness: That we are to forgive those who sin against us not just seven times, as He was asked by Peter ("Lord, how often shall my brother sin against me and I forgive him? Up to seven times? ... Matthew 18:21). Peter used the number seven because that was the number known as the "perfect" number. So, forgiving up to seven times seemed to be a lot and the "perfect" amount. What Jesus answered must have shocked Peter and the others; we are not to forgive just seven times but seventy times seven (that's 490 times to you mathematically challenged). So, if I am to forgive my brother who sins against ME 490 times, does Jesus have to forgive us, when we repent, that many times? The answer is obvious. We are to follow what John told us in 1 John 1:9, "If we confess our sins He (God) is faithful and just to forgive us our sins." So, the number is a way of saying God forgives us without measure. If He expects us to do that kind of forgiving, than we are to also expect that He too will forgive us that way. It is doubtful if any of our friends would ever sin against us 490 times. We seldom can forgive them once without a constant reminder of the wrong they did to us, but in reality we are have the spirit of that type of forgiveness. In Ezekiel 16:60-63 we see God demonstrate that spirit of forgiveness by being willing to forgive the Israelites for their many sins. We will well surpass the 490 times of sinning against God (perhaps each day). Yet, in the midst of all the sin they demonstrated Israel was still forgiving by what God was willing to do. He is a forgiving God. Seventy times seven ... He forgives us constantly, repeatedly, faithfully, consistently. Yes, God will forgive and is obligated, based upon His character to forgive us. It is who He is. If we could only demonstrate a small portion of that to our brothers.