For the religious leaders, their hearts were not seeking the things of God. And so instead of coming before Jesus in humility as the son of God. Their hardened hearts wanted to debate and argue with him. “How can you testify about yourself. You need someone else to testify about you.” Of Course, John the Baptist had testified, The Father has testified at his baptism, his miracles testified about him, Scriptures testified. There were plenty of witnesses. But their hearts were hardened and they were blind as Jesus just said. They didn’t realize that were in a dire situation, lost in the darkness. They didn’t realize they were desperate men in a need of a Savior.