Here is how Paul prayed what he wished for Titus. It is a large prayer in small compass. It covers all that any Christian personally needs and it enfolds all that we would wish for our sisters and brothers in Christ. Grace to save, to keep, to help in every time of need. No matter what kind of Christian you are, no matter what your task in the Lord, that is what you need.
Mercy is also what every Christian needs.
It is the outflow of continuous pardon available in Christ. Believers need peace for comfort, to soothe the heart and conscience, to help us fulfil our daily tasks in the assurance of God's love and favour. All the grace, mercy and peace that come, come from the heart of the Father as it rests and rejoices in the work of the Son. But he is also the Saviour. These are the family bonds that forge this close relationship between Paul and his fellow worker Titus.