1 Timothy 4:10

In fact this is why we work hard and struggle, because we have set our hope on the living God, who is the Savior of all people, especially of believers.

Paul is encouraging Timothy to train in godliness, and also speaking the truth to him about the suffering and hard work it takes to be a minister of the gospel. The point is that they serve, with a singular and ignited passion, the living God. He is the God who is worth whatever amount of work, and whatever amount of suffering, to the point that living faithful to His leading IS worship. I would argue that Paul delights in the suffering and labor for the Lord, and he is encouraging Timothy to do the same. In 1 Samuel 2 Hannah prays, “My heart rejoices in the Lord; in the Lord my horn is lifted high. My mouth boasts over my enemies, for I delight in your deliverance.” Psalm 35:9 says, “Then my soul will rejoice in the Lord and delight in his salvation.” The Lord delights in you, and His hope is that you would delight in Him.