"If anyone serves me let him follow me" -Jesus

Is this word from Jesus not part of our Gospel?   Is embracing this word from Jesus not part of our believing in Him?

And Jesus answered them, saying, "The hour has come for the Son of Man to be glorified. "Truly, truly, I say to you, unless a grain of wheat falls into the earth and dies, it remains alone; but if it dies, it bears much fruit. "He who loves his life loses it, and he who hates his life in this world will keep it to life eternal. "If anyone serves Me, he must follow Me; and where I am, there My servant will be also; if anyone serves Me, the Father will honor him.  (Joh 12:23-26)

Jesus was perfectly loyal to God and perfect in self-sacrificial love for fellow man.  Aren't you glad that God calls you to follow no one less?