God's word is filled with commands to be thankful.
A few verses from God’s holy Word for Thanksgiving:
Give thanks unto the LORD, call upon his name, make known his deeds among the people. — 1 Chronicles 16:8
Therefore will I give thanks unto thee, O LORD, among the heathen, and sing praises unto thy name. — Psalm 18:49
Sing unto the LORD, O ye saints of his, and give thanks at the remembrance of his holiness. — Psalm 30:4
Unto thee, O God, do we give thanks, unto thee do we give thanks: for that thy name is near thy wondrous works declare. — Psalm 75:1
Praise ye the LORD. O give thanks unto the LORD; for he is good: for his mercy endureth for ever. — Psalm 106:1
But thanks be to God, which giveth us the victory through our Lord Jesus Christ. — 1 Corinthians 15:57
Now thanks be unto God, which always causeth us to triumph in Christ, and maketh manifest the savour of his knowledge by us in every place. — 2 Corinthians 2:14
Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God. — Philippians 4:6
And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him. — Colossians 3:17
In every thing give thanks: for this is the will of God in Christ Jesus concerning you. — 1 Thessalonians 5:18
May God bless you as you enjoy this holiday.