I will bless the LORD at all times; His praise shall continually be in my mouth. Psalm 34:1
We often say, “God bless you!” to others without thinking about what it actually means. When God blesses us, He speaks a word of care or favor over us (Psalm 29:11). And when we bless God, we do the same — we speak a good word about God’s many attributes that benefit (bless) us (Psalm 26:12). So when the psalmist says, “I will bless the Lord at all times,” he is saying, “I will continually speak of God’s goodness, kindness, generosity, and other traits.” That is, I will continually manifest an attitude of gratitude toward God for who He is and what He has done.
Do you see this background of blessing in Paul’s words, “In everything give thanks” (1 Thessalonians 5:18)? Every day, we should give thanks to God and bless His holy name for His many gifts of grace to us. Even on challenging days, we can be grateful for the fact that God is with us, causing all things to work together for good for those who love Him (Romans 8:28).
Let every day be one in which you live with an attitude of gratitude toward Him.
Christian doctrine is grace, and Christian conduct is gratitude. J. I. Packer
Borrowed from something Dr. David Jeremiah said