Psalms 89:16

Happy are those who so know the joyful sound of the gospel as to obey it; who experience its power upon their hearts, and bring forth the fruit of it in their lives. Though believers are nothing in themselves, yet having all in Christ Jesus, they may rejoice in his name. May the Lord enable us to do so. The joy of the Lord is the strength of his people; whereas unbelief dispirits ourselves and discourages others. Though it steals upon us under a semblance of humility, yet it is the very essence of pride. Christ is the Holy One of Israel; and in him was that peculiar people more blessed than in any other blessing.

In thy name shall they rejoice all the day. And good cause they have for so doing, for to the soul which, in Christ Jesus, has entered into covenant with God, every attribute is a fountain of delight. There is no hour in the day, and no day in our life, in which we may not rejoice in the name, person, and character of the Lord. We need no other reason for rejoicing. As philosophers could make merry without music, so can we rejoice without carnal comforts; the Lord All sufficient is an all sufficient source of joy. And in thy righteousness shall they be exalted. By the Lord's righteous dealings the saints are uplifted in due time, however great may have been the oppression and the depression from which they may have suffered. In the righteousness which the covenant supplies, which is entirely of the Lord, believers are set on high in a secure and blessed position, so that they are full of sacred happiness. If God were unjust, or if he regarded us as being without righteousness, we must be filled with misery, but as neither of these things are so, we are exalted indeed, and would extol the name of the Lord.