How does prayer involve praise according to the Bible?

In 1 Samuel 2, Hannah's prayer serves as a model that integrates both petition and praise. Initially, she prayed silently for a son, and after receiving God's blessing, she publicly praises Him in a fervent hymn. Her rejoicing reflects an important biblical principle: prayer should begin and include thanksgiving for God’s goodness (Philippians 4:6). Effective prayer acknowledges God's past faithfulness, and thus strengthens our trust in His future provision. By praising God, we not only honor Him but also remind ourselves of His attributes—His holiness, sovereignty, and mercy—encouraging a deeper relationship with Him.