Psalm 100:1-5  — Make a joyful noise unto the LORD, all ye lands.
Serve the LORD with gladness: come before his presence with singing.

Know ye that the LORD he is God: it is he that hath made us, and not we ourselves; we are his people, and the sheep of his pasture.

Enter into his gates with thanksgiving, and into his courts with praise: be thankful unto him, and bless his name.

For the LORD is good; his mercy is everlasting; and his truth endureth to all generations.

Psalm 107:1-2 — O give thanks unto the LORD, for he is good: for his mercy endureth for ever.

Let the redeemed of the LORD say so, whom he hath redeemed from the hand of the enemy.
Shall I go on? I could. The Bible is full of verses of thanksgiving. Thanksgiving is not just a critical part of prayer, it’s a critical part of life. For now, though, let’s focus on thanksgiving as the third of my necessary elements of organized prayer.
Why is thanksgiving so important beyond common gratitude? Well no, wait — even common gratitude should be enough … “If ye then, being evil, know how to give good gifts unto your children, how much more shall your Father which is in heaven give good things to them that ask him?” (Matthew 7:11). God is so generous. The old children’s hymn had it right:
Count your blessings, name them one by one;

Count your blessings, see what God hath done;

Count your blessings, name them one by one;

Count your many blessings, see what God hath done.
The most important way, of course, that God has blessed me is that He has provided me with the means and occasion of salvation — “Let the redeemed of the LORD say so, whom he hath redeemed from the hand of the enemy.”
There are many more reasons, though, for us to offer thanksgiving. One place to start is God’s character: “For the Lord is good; his mercy is everlasting; and his truth endureth to all generations.” This brings thanksgiving very close to adoration.
As well as who God is, I thank Him for the things He has done:
To him who alone doeth great wonders: for his mercy endureth for ever. To him that by wisdom made the heavens: for his mercy endureth for ever. To him that stretched out the earth above the waters: for his mercy endureth for ever. To him that made great lights: for his mercy endureth for ever: The sun to rule by day: for his mercy endureth for ever: The moon and stars to rule by night: for his mercy endureth for ever. Psalms 136:4-9
Thanksgiving recognizes who God is, what He has done, and what He has done for us. It’s an essential part of the conversation. It gives glory to God. But it helps focus our attention. Most importantly, for me, remembering God’s nature helps me to approach Him with confidence with my needs as they arise.

Thanksgiving is the fuel of faith … In everything give thanks!