Phil. 4:6 - "We tell God our problems, making our requests known to Him with thanksgiving."
Through this, it is said that by expressing gratitude to the lord, he will know our problems and what all we need in life.

Psalms 92:1- "It is a good thing to give thanks unto the Lord, and to sing praises unto thy name, O most High"
this verse of thanksgiving in bible is said to have thanksgiving as a good day and action which is something to be inculcated in everyone.

Psalms 140:1 - "Surely the righteous shall give thanks unto thy name: the upright shall dwell in thy presence."
The power of thanksgiving is expressed through this verse of bible.  The presence of the lord is always with you if you feel grateful to him for all he has given to you.

Colossians 3:17 - "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."
in whatever we do, we should always trust the name of Jesus since he will be with us in everything that we plan and wish to do. Our gratitude should be there to him for all the love that he has for us.

Psalms 50:14 - "Offer unto God thanksgiving; and pay thy vows unto the most high"
according to this verse of thanksgiving in bible, it is said that we should offer our gratitude on thanksgiving to the lord who has given us everything.