Colossians 4:2 AMP
Be earnest and unwearied and steadfast in your prayer [life], being [both] alert and intent in [your praying] with thanksgiving.
Hebrews 12:28 AMP
Let us therefore, receiving a kingdom that is firm and stable and cannot be shaken, offer to God pleasing service and acceptable worship, with modesty and pious care and godly fear and awe;
1 Thessalonians 5:18 AMP
Thank [God] in everything [no matter what the circumstances may be, be thankful and give thanks], for this is the will of God for you [who are] in Christ Jesus [the Revealer and Mediator of that will].