John 14:15 If you love me, keep my commandments.
John 14:23 Jesus answered, and said to him: If any one love me, he will keep my word, and my Father will love him, and we will come to him, and will make our abode with him.
Matthew 28:18-20 18 And Jesus coming, spoke to them, saying: All power is given to me in heaven and in earth. 19 Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. 20 Teaching them to observe all things whatsoever I have commanded you: and behold I am with you all days, even to the consummation of the world.
That pretty much sums it up.

He also said…
Luke 17:
9] Does he thank the servant because he did what was commanded?
10] So you also, when you have done all that is commanded you, say, `We are unworthy servants; we have only done what was our duty.’"