I receive not honour from men. But I know you, that ye have not the love of God in you. I am come in my Father’s name, and ye receive me not: if another shall come in his own name, him ye will receive. How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only?
– John 5:41-44
True faith involves a spiritual renovation of the heart. Faith cannot coexist with self-exaltation. It is inherently humble and God-exalting. It looks away from itself to God and delights not in the praises of men, but in the glory of God.
[Jesus came] not in his own name, but in the name of his Father. This means that he embodies the kind of humble, God-exalting frame of heart that faith loves. But they will not receive him. Why not? Because he threatens their pride. If he came in his own name, Jesus says, they would receive him. Why? Because he would fit with the way they are: desiring that their own names be praised by men. The bottom line is that they do not love God (v. 42). That is, they don’t delight in his exaltation, but their own. This disposition cannot believe. Faith is impossible for a person who is in love with the praise of men. – John Piper, Future Grace