God expects perfection of you. Everyone will one day stand before Jesus Christ and give an account of their deeds. Everyone who sins deserves death. It is God's will that some should be saved but others perish in hell. Christ came to condemn the world for its sins.
Some people are spiritually stronger than others and have never yielded to temptation.
God will sometimes tempt people to see whether they will be obedient to Him. For someone to come to God, there must be a man acting as a mediator. All you have to do to be saved is confess that Jesus is Lord and believe that God raised Him from the dead. God has provided for our salvation, but there is a price we must pay for it. Although God remembers every one of our sins, He tolerates them if we have Christ.