Thanksgiving is the act of expressing gratitude to God, with gratefulness, for His divine goodness, mercies, and gifts that He has given to us. Thanksgiving shows appreciation to God; it is an act of worship. Even though God may know we’re thankful, it is important for us to express it and purposely offer Him an offering of thanksgiving. You see it is showing God that your are thankful- by not taking Him for granted- it is showing Him appreciation, by your actions- The Bible says,
“I will offer to thee the sacrifice of thanksgiving, and will call upon the name of the LORD.” (Psalm 116:17) here the psalmist says I will offer you a sacrifice of thanksgiving- or an offering of thankfulness– it is being genuinely thankful to God. when your thankful how do act- Think about it and be thankful everyday! God Bless you!
Psa 69:30 I will praise the name of God with a song, and will magnify him with thanksgiving.