Now this is profound and very important to us. How can we increase our assurance? How can we increase as believers our joy and our peace in believing? How may we know Christian happiness? Well, here is one of the answers – they derive such happiness from this sacrificial act. It is the same with the other graces – utterance. Great joy comes from testimony. Not maybe the run up to it when one might be anxious, nervous, shy, apprehensive of a reception, find it difficult. But in the doing of it and afterwards, there is great joy in representing the Saviour. The same is true in any earnest Christian service – this is where Christian joy comes from – and in love and prayer for the cause, for the mission. Joy is rooted to us by the Lord in the doing of these things and through these things. So if I lack Christian happiness, it may be that my graces are not being exercised as they might be or should be. So that is an important, I think, and a very significant point.