"Do not be slothful in zeal, be fervent in spirit, serve the Lord." Romans 12:11
It's a little verse amidst a longer list of practicals for the Christian life. But there is a strong call in the verse for us to follow that should be at the very core of our lives. Let us be zealous for God's kingdom, may we have a passion for God and his word, and let us not grow weary in service to our God and Father.