Grace also holds the Beatitudes together. The first three beatitudes describe a disciple’s knowledge of his spiritual need. The fourth states God’s promise to meet that need. The fifth through seventh describe the results of the fourth beatitude.
Daniel M. Doriani, Matthew 1-13, Reformed Expository Commentary, ed. Richard D. Phillips and Philip Graham Ryken (Phillipsburg, NJ: P&R, 2008), 109.