Contentment is not by addition but by subtraction: seeking to add a thing will not bring contentment. Instead, subtracting from your desires until you are satisfied only with Christ brings contentment.
We should study Christ, and praise and bless God, and have our hearts enlarged for Jesus Christ. This is the duty of believers to whom God has revealed Christ as wonderful, that in their conversations they should hold out the wonderful glory of Jesus Christ. You should so walk before men as to manifest to all the world that your Savior is a wonderful Savior
When [the saints] perform actions to God, then the soul says: 'Oh! that I could do what pleases God!' When they come to suffer any cross: 'Oh, that what God does might please me!' I labour to do what pleases God, and I labour that what God does shall please me: here is a Christian indeed, who shall endeavour both these. It is but one side of a Christian to endeavour to do what pleases God; you must as well endeavour to be pleased with what God does, and so you will come to be a complete Christian when you can do both, and that is the first thing in the excellence of this grace of contentment.