Mosiah 5

The doctrine of Christ requires us to make and keep sacred covenants. One of those covenants is that we are willing to take upon us the name of Christ or in other words, be born again through His grace and atonement for -

"...under this head ye are made free, and there is no other head whereby ye can be made free. There is no other name given whereby salvation cometh; therefore, I would that ye should take upon you the name of Christ, all you that have entered into the covenant with God that ye should be obedient unto the end of your lives." (Book of Mormon | Mosiah 5:8)

As we make these covenants we learn that our right hand is the covenant hand for King Benjamin taught -

"...that whosoever doeth this shall be found at the right hand of God, for he shall know the name by which he is called; for he shall be called by the name of Christ.
10 And now it shall come to pass, that whosoever shall not take upon him the name of Christ must be called by some other name; therefore, he findeth himself on the left hand of God." (Book of Mormon | Mosiah 5:9 - 10)

And as we covenant with our right hand and we partake of the sacrament to be willing to take upon ourselves His name, for -

"...this is the name that I said I should give unto you that never should be blotted out, except it be through transgression; therefore, take heed that ye do not transgress, that the name be not blotted out of your hearts.
12 I say unto you, I would that ye should remember to retain the name written always in your hearts, that ye are not found on the left hand of God, but that ye hear and know the voice by which ye shall be called, and also, the name by which he shall call you." (Book of Mormon | Mosiah 5:11 - 12)

I think there is a significant difference between knowing of Christ and knowing Christ -

"For how knoweth a man the master whom he has not served, and who is a stranger unto him, and is far from the thoughts and intents of his heart?" (Book of Mormon | Mosiah 5:13)