Deuteronomy 6:5
And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.
Matthew 22:37
Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
The greatest commandment given to follow, then our Lord also said this;
John 14:15
If ye love me, keep my commandments.
John 14:23
Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
He makes it clear that those who obey the greatest commandment will obey all that He taught/commanded, and states it in the great commission.
Matthew 28:16-20
The Great Commission
16 Then the eleven disciples went to Galilee, to the mountain where Jesus had told them to go. 17 When they saw him, they worshiped him; but some doubted. 18 Then Jesus came to them and said, “All authority in heaven and on earth has been given to me. 19 Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, 20 and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.”
Now we see that those that are His true followers, and believe in Him will do the things He commanded.
Now the question you must ask yourself is this;
Did Jesus command repentance ? ( Luke 13:3 )
Did Jesus command confession ? ( Matthew 10:32-33, Luke 12:8-9 )
Did Jesus command baptism ? ( Matthew 28:19, Mark 16:16 )