"Create in me a pure heart, O God,
and renew a steadfast spirit within me.
Do not cast me from your presence
or take your Holy Spirit from me.
Restore to me the joy of your salvation
and grant me a willing spirit, to sustain me."
Here is David again. He has confessed his sin and asked for forgiveness. Now he asks God to "restore" him. He doesn't just need to be cleansed, he longs to be where he was before in his relationship with God. Remember that David was a man "after God's own heart" so when he is here asking for a clean heart and a steadfast spirit, he is asking for what he had before he gave in to temptation.
So many times we long to go back to a time before now. A time before my knees started aching, before those hurtful relationships, before a virus that changed things, but we can't. All we can do is move forward. David is showing us the way to do that. Forgiveness and restoration.
If you have hurt someone, ask for forgiveness and restore that relationship. If someone has hurt you, forgive them and ask God to restore that relationship. If you have sinned against God, ask for forgiveness and ask Him to restore your relationship.
Forgiveness and restoration go hand-in-hand. It's not so much a "forgive and forget" as it is a forgive and put back together scenario. There may be restitution to be made. It may be a series of trust-building moments. But restoration must be sought.
David says "restore to me the joy of your salvation and grant me a willing spirit." Restoration leads to JOY. Joy from knowing you are in right relationship with God your Father, you have a friend back, you are restored to your spouse. But it is the relationship restored with God that brings the greatest joy. As David says his joy and willing spirit "sustain him."
May God sustain you as you keep your relationship with Him strong and healthy.