When someone expresses gratitude to God for his help or blessings, it is often called "giving thanks" or "thanking God." This act of giving thanks is commonly referred to as "prayer of thanksgiving" or "thanksgiving prayer." It is a form of prayer that acknowledges God's goodness and blessings in one's life and expresses gratitude for them. Thanking God is a common practice in many religions, and it is often considered an important part of developing a strong and meaningful relationship with God.