All that the Father hath

"The Father loveth the Son, and hath given all things into his hand." - John 3:35
"And he who believeth on the Son hath everlasting life; and shall receive of his fulness. But he who believeth not the Son, shall not receive of his fulness; for the wrath of God is upon him." - JST John 3:36

In verse 35 we see that the Father "hath given all things" to his Son. In verse 36 we see that those who believe "on the Son hath everlasting life." Those who believe on the Son will also receive the fullness of the Son. The fullness of the Son according to verse 35 is the fullness of the Father. This means that those who believe one the Son will receive all that the Father hath and have everlasting life.

We also get the same concept from the Oath and Covenant of the Priesthood in the Doctrine and Covenants.

"And he that receiveth me receiveth my Father; And he that receiveth my Father receiveth my Father’s kingdom; therefore all that my Father hath shall be given unto him." - D & C 84:37-38