We know that God loves us and takes pleasure in us simply because we are his creation and his chosen children. But there are also ways in which our choices and actions can put a smile on our Heavenly Father's face and bring joy to his heart. We see Paul praising and thanking God for those things in the Thessalonians and we can learn from their example.
"We give thanks to God always for all of you, constantly[a] mentioning you in our prayers, remembering before our God and Father your work of faith and labor of love and steadfastness of hope in our Lord Jesus Christ." 1 Thessalonians 1:2-3