The testimony of Jesus may not be what you think it is.

D&C 76:50 And again we bear record—for we saw and heard, and this is the testimony of the gospel of Christ concerning them who shall come forth in the resurrection of the just—
51 They are they who received the testimony of Jesus, and believed on his name and were baptized after the manner of his burial, being buried in the water in his name, and this according to the commandment which he has given…
67 These are they who have come to an innumerable company of angels, to the general assembly and church of Enoch, and of the Firstborn.
68 These are they whose names are written in heaven, where God and Christ are the judge of all.
69 These are they who are just men made perfect through Jesus the mediator of the new covenant, who wrought out this perfect atonement through the shedding of his own blood.
70 These are they whose bodies are celestial, whose glory is that of the sun, even the glory of God, the highest of all, whose glory the sun of the firmament is written of as being typical.

D&C 76:71 And again, we saw the terrestrial world, and behold and lo, these are they who are of the terrestrial, whose glory differs from that of the church of the Firstborn who have received the fulness of the Father, even as that of the moon differs from the sun in the firmament.
72 Behold, these are they who died without law;
73 And also they who are the spirits of men kept in prison, whom the Son visited, and preached the gospel unto them, that they might be judged according to men in the flesh;
74 Who received *not* the testimony of Jesus in the flesh, but afterwards received it.
75 These are they who are honorable men of the earth, who were blinded by the craftiness of men.

D&C 76:81 And again, we saw the glory of the telestial, which glory is that of the lesser, even as the glory of the stars differs from that of the glory of the moon in the firmament.
82 These are they who received *not* the gospel of Christ, neither the testimony of Jesus.
83 These are they who deny not the Holy Spirit.
84 These are they who are thrust down to hell.
85 These are they who shall not be redeemed from the devil until the last resurrection, until the Lord, even Christ the Lamb, shall have finished his work.

>To receive the “testimony of Jesus” is to receive His testimony to you that you have pleased God.<

From page 41 of The Words of Joseph Smith:

Revelation 19:10 And I fell at his feet to worship him. And he said unto me, See thou do it not: I am thy fellowservant, and of thy brethren that have the testimony of Jesus: worship God: for the testimony of Jesus is the spirit of prophecy.

JST Genesis 14:29 And it was delivered unto men by the calling of his own voice, according to his own will, unto as many as believed on his name.
30 For God having sworn unto Enoch and unto his seed with an oath by himself; that every one being ordained after this order and calling should have power, by faith, to break mountains, to divide the seas, to dry up waters, to turn them out of their course;
31 To put at defiance the armies of nations, to divide the earth, to break every band, to stand in the presence of God; to do all things according to his will, according to his command, subdue principalities and powers; and this by the will of the Son of God which was from before the foundation of the world.
32 And men having this faith, coming up unto this order of God, were translated and taken up into heaven…