Ether 8

1 witness of Christ here, and 1 further echo from the reading.

The Lord who avenges His saints

And whatsoever nation shall uphold such secret combinations, to get power and gain, until they shall spread over the nation, behold, they shall be destroyed; for the Lord will not suffer that the blood of his saints, which shall be shed by them, shall always cry unto him from the ground for vengeance upon them and yet he avenge them not. Ether 8:22–24

The Lord hears the blood of murdered saints and will bring justice on secret combinations. As Judge, this role belongs to Christ, though the verse does not separate Father and Son.

AttestedJehovah — the LORDA divine namethe Father or the Son

How we know: Jehovah is the premortal Christ (Abraham 1:16; D&C 110:3–4)

alludes to Revelation 6:9-10 — The souls of the slain cry, 'How long, O Lord... dost thou not judge and avenge our blood?'
alludes to Genesis 4:10 — Abel's blood crying unto God from the ground.

Fountain of All Righteousness

Fountain of all righteousness — the source from which all goodness flows

Wherefore, I, Moroni, am commanded to write these things that evil may be done away, and that the time may come that Satan may have no power upon the hearts of the children of men, but that they may be persuaded to do good continually, that they may come unto the fountain of all righteousness and be saved. Ether 8:26

Moroni invites everyone to come to the source of all righteousness and be saved. Four chapters later the Lord uses this title for Himself, so it is a title of Christ.

A readingExplicitA title of Christa messenger speaking for Him

the same title in Ether 12:28 — The Lord: faith, hope and charity 'bringeth unto me—the fountain of all righteousness'.
the same title in 1 Nephi 2:9 — Lehi's river running into 'the fountain of all righteousness'.