John Trapp on Psalms 27:8

Verſ. 8. When thou ſaidſt Seek yee my face, &c.] Or, My heart ſaid unto thee (or, for thee, and in thy ſtead) Let my face ſeek thy face, &c. Or concerning Thee, ſaid my heart, that is, I have conſtantly conſidered of thoſe words of thine, Seek yee my face, and therefore I come confidently unto thee. See Deut. 4.19. Upon which Commandement (involving a promiſe) David ſeems to ground this ſpeech of his. R. Solomon hath it thus, Thou haſt ſaid to my heart, Seek yee my face, that is, Thou haſt told mee by thy Spirit that all Iſrael ſhould ſeek thy face, and as for mee, I will ſurely ſeek thy face.

My heart ſaid unto thee, &c.] My heart (moved and inſpired by thy Spirit working in mee a gracious compliance) ecchoed out as it were, Thy face, &c. See the like, Jer. 3.22. Return yee backſliding Children, and I will heal your backſlidings; behold we come unto thee; for thou art the Lord our God. Every godly perſon hath the duplicate of Gods law in his heart; and is willingly caſt into the mould of his word, Rom. 6.27.