Psalm 103
Psalm 103:1–22 is a song that testifies to the Lord’s mercy; he does not treat us as our sins deserve. This will be a good song to sing before your sermon, perhaps a song of praise at the beginning of the worship service.
Psalm 139
Psalm 139:1–24 is a song which testifies to God’s presence. He sees everything and is in complete control of history. This would be a good song to sing after your sermon, especially Psalm 139:1–12.
1 Il y avait un homme de Benjamin, nommé Kis, fils d'Abiel, fils de Tseror, fils de Becorath, fils d'Aphiach, fils d'un Benjamite. C'était un homme fort et vaillant.