“Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold the new has come.” 1 Corinthians 5:17
According to Saint Paul, belief in Christ changes us. In a number of places, the Bible speaks of this change in terms of how we are clothed. Before Christ’s atonement, even our righteous deeds are described by the prophet Isaiah as “a polluted garment”(Isaiah 64:6). However, in Christ we are, “… clothed … with the garments of salvation; … covered … with the robe of righteousness.”(Isaiah 61:10). We actually “put on Christ”(Romans 13:14) and stand before God in His suit, not ours.
In addition, our faith in Christ protects us with “the armor of God” which enables us to stand firm in the face of temptation. You can read about it in Ephesians Chapter 6 verses 14-17.
“Stand therefore, having fastened on the belt of truth, and having put on the breastplate of righteousness, and as shoes for your feet, having put on the readiness given by the gospel of peace. In all circumstances, take up the shield of faith, with which you can extinguish the flaming darts of the evil one; and take the helmet of salvation, and the sword of the Spirit, which is the word of God …”
It’s been said that clothes make the man (or woman). God has changed you by giving you a whole new wardrobe. You’re saved; you’re justified; you’re protected. People will see you in a new way.. Wear that suit as if it makes a difference.