We are ever giving thanks to God for all of you, continually mentioning [you when engaged] in our prayers,

For what [adequate] thanksgiving can we render to God for you for all the gladness and delight which we enjoy for your sakes before our God?

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].