因此，我們不要著眼於得失，但要好好裝備自己，免得受考驗時跌倒。如宗徒鼓勵我們：「親愛的，你們不要因為在你們中，有試探你們的烈火而驚異，好像遭遇了一件新奇的事；反而要喜歡，因為分受了基督的苦難，這樣好使你們在他光榮顯現的時候，也能歡喜踴躍。如果你們為了基督的名字，受人辱罵，便是有福的，因為光榮的神，即天主的神，就安息在你們身上。」-- 伯多祿前書 4:12-14
It seems desirable for a lot of people to aim for higher social status, to a position where one has more power, fame and money, and to be a person that is being served rather than the one that is serving.
When the mother of James and John came to Jesus and made the request (note that in another gospel it is the two disciples who were requesting), they obviously did not understand Jesus' prediction of His suffering, and were only thinking about what they can get from following this Jewish King. The other ten disciples were angry when they heard this, probably because they were thinking about the same thing too. Therefore Jesus has to teach them the real meaning of being a ‘greater' one among them.
We too, have to ask ourselves, when we serve the Lord and the Church, what is our motivation? Is it really for the love of God and our neighbor, or are we having other hidden intentions?
Jesus taught us if we were to follow Him, we must abandon our earthly desires, and empty ourselves to serve one another with love, rather than expecting others to serve us or getting something in return. Our Heavenly Father will decide what rewards we'll get.
Also, as His disciples, we must be prepare ourselves to endure difficulties, criticism, and even persecution in this life, because as Jesus said, no servant is greater than His master. When James and John replied yes to Jesus' question, “Can you drink the cup that I am going to drink?” They probably did not understand what Jesus meant, nor were they prepared for what is going to happen, so after Jesus was arrested, they both fled.
Our eyes should be fixed on Jesus, while preparing ourselves with His teaching; so when the time of trial comes, we will stand. As St. Peter encouraged us: "Beloved, do not be surprised that a trial by fire is occurring among you, as if something strange were happening to you. But rejoice to the extent that you share in the sufferings of Christ, so that when his glory is revealed you may also rejoice exultantly. If you are insulted for the name of Christ, blessed are you, for the Spirit of glory and of God rests upon you."- 1 Peter 4:12-14