JehovahJehovah was the premortal name-title given to the Firstborn Son of God. He is now referred to as Jesus Christ. The meaning of the name Jehovah was explained by Elder Talmage:
“Jehovah is the Anglicized rendering of the Hebrew, Yahveh or Jahveh, signifying the Self-existent One, or The Eternal. This name is generally rendered in our English version of the Old Testament as Lord printed in capitals. The Hebrew, Ehyeh, signifying I Am, is related in meaning and through derivation with the term Yahveh or Jehovah.” (Jesus the Christ, p. 36.)
"As we commemorate the birth of Jesus Christ two millennia ago, we offer our testimony of the reality of His matchless life and the infinite virtue of His great atoning sacrifice. None other has had so profound an influence upon all who have lived and will yet live upon the earth.
Jehovah and the Wonderful Plan of Our Heavenly Father By Diane L. Mangum
Someone needed to show us how to follow Heavenly Father. Who was obedient enough to do it?
Someone needed to atone for our sins so we could repent when we made mistakes. Who was good enough to do it?
Someone needed to die and be resurrected so we could all be resurrected and return to heaven. Who was brave enough and loving enough to do it?
Was anyone willing to do all this for us?
One person was. Our oldest brother, Jehovah, said, “Here am I, send me” (Abraham 3:27).
How we loved Him for that.
When Jehovah came to earth, He was our Savior. He was called Jesus Christ.