Let the brother of low degree
By "the brother" is meant, not one in a natural, but in a spiritual relation; one of Christ's brethren, and who is of that family that is named of him; of the household of faith, and is in church communion: and whereas he is said to be of "low degree", or "humble", this regards not the affection of his mind, or his conduct and deportment, he being meek and lowly, and clothed with humility, as every brother is, or ought to be; but his outward state and condition, being, as to the things of this world, poor, and mean in his outward circumstances, and so humbled and afflicted. This appears from the rich man, who, in the next verse, is opposed unto him, and distinguished from him; see ( Psalms 62:9 ) such an one is advised to
rejoice in that he is exalted;
or to "glory in his exaltation"; in that high estate, to which he is advanced; for a person may be very low and mean, as to his worldly circumstances, and yet be very high, and greatly exalted in a spiritual sense: and this height of honour and grandeur, of which he may boast and glory, amidst his outward poverty, lies in his high birth and descent, being born from above, and of God, and belonging to his family; in being an adopted Son of God, and so an heir of God, and a joint-heir with Christ, and of the heavenly inheritance and kingdom; in the present riches of grace he is possessed of, as justifying, pardoning, and sanctifying grace; and in the high titles he bears, as besides the new name, the name better than that of sons and daughters of the greatest potentate, even that of a Son of the Lord God Almighty, his being a King, and a priest unto God, and for whom a kingdom, crown, and throne are prepared; and also in the company he daily keeps, and is admitted to, as of God, and Christ, and the holy angels: and this height of honour have all the saints, be they ever so poor in this world, who can vie with the greatest of princes for sublimity and grandeur.