Some people have the idea that there are small and big sins. They think some are ok and some are not. But according to the Bible all sin is wicked in God's eyes. No one "gets away" with sin. We will all suffer consequences for the things we do or don't do.
Special situations do not justify any kind of sin. It's still disobedience to God no matter the circumstances.
When children of God know the law of God and still willfully disobey we will suffer loss.
"To him that knoweth to do good and doeth it not, to him it is sin." James 4:17
God made it very clear to Saul that his sin of rebellion was just as bad as witchcraft.
"For rebellion is as the sin of witchcraft, and stubbornness is as iniquity and idolatry. Because thou hast rejected the word of the Lord, he hath also rejected thee from being king" 1 Samuel 15:23
During the early church when they were having great growth many people were giving lots of their possessions for the cause of Christ. They were not made to do that, they just wanted to give and see the church grow. But there was one couple Ananias and Sapphira, that got caught up in the excitement of giving. They told everyone they gave all they had, but actually they had kept back a portion for themselves. Because they lied they both died in the church. It wasn't required for them to give it all, but the fact that they lied about giving it all, God took their lives. They lied to the man of God and to God himself.
No sin is justifiable in God's eyes. Yes sometimes His grace spares us the punishment we deserve but he is hoping that we will acknowledge our mistakes and turn away from them.
"Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound." Romans 5:20
Not getting immediate consequences for our sin is not an approval from God on our actions. Stealing one cent is still thievery. Cheating on your spouse only once is still adultery. Lying to the police about speeding is still lying. Yes, when we get saved our sins are forgiven, past-present-future. Staying in sin will not send us to hell, if we are saved, but it will steal our joy and cause us to suffer loss in our lives.
Our flesh gives us a fight every day when we wake up. We have a choice to make...please the flesh or please God.
"Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak." Matthew 26:41
