We are free from the law to live un-condemned lives through the Spirit.

Romans 8:1 There is therefore now no condemnation to them who are in Christ Jesus, who walk not after the flesh, but after the Spirit.

There may be certain guidelines, convictions, or promptings that are only sinful if we do contrary to what God specifically leads us to do.

For example, one person may not have peace about kissing before marriage. Someone else may kiss and be fine with that. The Bible is clear about fornication, but kissing is permitted. But if God gave you that conviction about abstaining from kissing until marriage, then it is sin to not abide by it.

1 Peter 1: 2God the Father knew you long ago and chose you to live holy lives with the Spirit’s help so that you are obedient to Jesus Christ and are sprinkled with his blood. May good will and peace fill your lives!

Reference: Priscilla Shirer