The solution to staying on the right side of the fine line between using and abusing grace is repentance. The road to repentance is godly sorrow (2 Corinthians 7:10). Godly sorrow is developed when we focus on the true nature of sin as an offense against God rather than something that makes us feel guilty.

Contentment is one of the most distinguishing traits of the godly person, because a godly person has his heart focused on God rather than on possessions or position or power.

God makes provision for our holiness, but He gives us the responsibility of using those provisions.

Justified" is even better than "just as if I'd never sinned." It is also "just as if I'd always obeyed.

Because peace is a fruit of the Spirit, we are dependent upon the Spirit's work in our lives to produce the desire and the means to pursue peace. But we are also responsible to use the means He has given us and to take all practical steps to attain both peace within and peace with others.

Obeying the revealed will of God and trusting Him for the results.

The grace that brought salvation to you is the same grace that teaches or disciplines you. But you must respond on the basis of grace, not law.