John Trapp Complete Commentary
Nehemiah 1:5
And said, I beseech thee, O LORD God of heaven, the great and terrible God, that keepeth covenant and mercy for them that love him and observe his commandments:
Ver. 5. I beseech thee, O Lord] Annah Jehovah; an insinuating preface; whereby he seeketh first to get in with God speaking him fair; as doth likewise David, in a real and heavenly compliment, Psalms 116:16. Obsecro Iehovah, I beseech, O Lord (I am thy servant, I am thy servant, the son of thine handmaid), break thou my bands. So the Church, Isaiah 64:9, "Behold, see, we beseech thee, we are all thy people."
The great and terrible God] A great King above all gods, Exodus 15:11. Aξιωματικωτατς εστιν ο βασιλευς ημων, saith a Greek father: "glorious in holiness, fearful in praises, doing wonders," saith Moses in one place; as in another, "The Lord our God is God of gods, and Lord of lords, a great God, a mighty, and a terrible," Deuteronomy 10:17. Vere verendus et venerandus. Truly reverence and will worship. Thus Nehemiah begins his prayer, and counts it a great mercy that he may creep in at a corner, and present himself before this most majestic Monarch of the world with greatest self-abasement.
That keepeth covenant and mercy] That he may at once both tremble before him and trust upon him; he describeth God by his goodness as well as by greatness, and so helpeth his own faith by contemplating God's faithfulness and lovingkindness. God hath hitherto kept covenant with heaven and earth, with nights and days, Jeremiah 33:20; Jeremiah 33:25, that one shall succeed the other; and shall he break with his people? no, verily. Be sure to keep faith in heart, or you will pray but poorly. And for this, learn in the preface to your prayers to propound God to yourselves in such notions, and under such terms and titles, as may most conduce thereunto, pleading the covenant.
That love him and observe his commandments] That love to be his servants, Isaiah 56:6, that wait for his law, Isaiah 42:4, that think upon his commandments to do them, Psalms 103:18 .