What does the Bible say about Jesus' siblings and their belief?

The Bible presents a clear picture of Jesus' siblings struggling with their belief in Him. In John 7:5, it's stated that 'neither did his brethren believe in him.' Despite being raised in the same home and witnessing His perfect life and miraculous works, they were blinded by their sin and human depravity. This illustrates a profound truth about the nature of faith; witnessing miracles alone does not guarantee belief. Their skepticism highlights how even those closest to Christ can fail to recognize His true identity and mission until their hearts are opened by God. It wasn't until later that some of them, like James and Jude, came to faith and even played significant roles in the early church.