Read: Mark 6:21-29 & Matthew 14:1-12
When his disciples heard of it, they came and took his body and laid it in a tomb. (Mark 6:29 ESV)
Herod married his sister in law. That's pretty weird. But he did. And John the Baptizer called him out about it. Which promptly landed John in prison. It eventually cost him his life. Herod had John beheaded in the prison at the behest of his niece-turned-stepdaughter.
When John's disciples found out they collected the body (minus the head) and buried him in a tomb. John was the greatest man to ever live, but he was just a man. He would stay dead. He would stay in his tomb.
Jesus was understandably sad about the death of his cousin, friend, and colleage. Ultimately he would face a similar fate for his continued stance against the Pharisees and their damnable corruption. However, Jesus' tomb was only borrowed, and that for just a few days. Because as the sun came up that first Easter Sunday morning the Son of Man came out of the tomb.
It's rare in America for believers to face the threat of death for taking a hard stand for the truth. However, a day may come when we do. If whether, at home, or abroad we sometime find ourselves facing death for the truth of the Gospel, we may wind up in another tomb. But Jesus holds the keys to death, hell, and the grave. He holds the keys to our future and our foundation. We can rest well and easy in him.