Scripture works on behalf of believers in a multitude of ways.
It saves them (1 Peter 1:23).
It sanctifies them (John 17:17).
It matures them (1 Peter 2:2).
It frees them (John 8:31-31).
It perfects them (2 Tim. 3:16-17).
It counsels them (Psalm 119:24).
It builds them up and gives them hope (Acts 20:32).
It ensures their spiritual success (Psalm 1:2-3).
Find a bible verse that speaks to your heart and meditate on it.
The MacArthur New Testament Commentary on 1 & 2 Thessalonians p.58.