Docrine & Covenants 93:19-22
19. I give unto you these sayings that you may understand and know how to worship, and know what you worship, that you may come unto the Father in my name, and in due time receive of his fulness.
20. For if you keep my commandments you shall receive of his fulness, and be glorified in me as I am in the Father; therefore, I say unto you, you shall receive grace for grace.
21. And now, verily I say unto you, I was in the beginning with the Father, and am the Firstborn;
22. And all those who are begotten through me are partakers of the glory of the same, and are the church of the Firstborn.