Gratitude or being thankful is an expression or acknowledgment in words or action of benefits received from another person. As a Christian, we are instructed to praise and give thanks in all things. An attitude of gratitude is one of the primary gateways to God's presence.
I Thessalonians 5:16 Rejoice evermore
v17 Pray without ceasing
v18 In every thing give thanks: for this is the will of God in Christ Jesus