Jesus was specifically asked what one must do to inherit eternal life. In response to a question of how to attain eternal life, Jesus answered:
16 And behold, one came up to him, saying, "Teacher, what good deed must I do, to have eternal life?" 17 And he said to him, "Why do you ask me about what is good? One there is who is good. If you would enter life, keep the commandments."
First, Jesus teaches of the necessity of Grace as the
only way to salvation. Man can not work to earn salvation. This is clear. However, He also makes it clear that cooperation with this grace that God gives is necessary. For example, Jesus says in John 15:4-6:
[size=18]John 15: 4 Abide in me, and I in you. As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me. 5 I am the vine, you are the branches. He who abides in me, and I in him, he it is that bears much fruit, for apart from me you can do nothing. 6 If a man does not abide in me, he is cast forth as a branch and withers; and the branches are gathered, thrown into the fire and burned.
7If you abide in me, and my words abide in you, ask whatever you will, and it shall be done for you. 8 By this my Father is glorified, that you bear much fruit, and so prove to be my disciples. 9 As the Father has loved me, so have I loved you; abide in my love. 10 If you keep my commandments, you will abide in my love, just as I have kept my Father's commandments and abide in his love.[/size]