Elder Russell M. Nelson, a member of the Quorum of the Twelve:
"When we embrace the gospel and are baptized, we are born again and take upon ourselves the sacred name of Jesus Christ [see D&C 20:37 ]. We are adopted as his sons and daughters and are known as brothers and sisters. He is the Father of our new life. We become joint heirs to promises given by the Lord to Abraham, Isaac, Jacob, and their posterity [see Galatians 3:29 ; D&C 86:8–11 ]" (in Conference Report, Apr. 1995, 43; or Ensign, May 1995, 34 ).
Note: In our religion, we believe Heavenly Father and Jesus Christ to be two separate beings. God the Father is the literal father of our spirits. Jesus Christ is His eldest spirit son, and the only begotten son in the flesh. When we accept Jesus Christ as our Savior, he becomes a spiritual Father to us. Then is this scripture in Isaiah fulfilled: "Yet it pleased the Lord to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the Lord shall prosper in his hand." (Isaiah 53:10)