Daniel was a figure known for his unwavering loyalty to God. He served in a foreign court but still adhered to his religious beliefs. This made him some enemies who plotted against him and got him thrown into the lions' den.
Van Gaal enjoyed a beer bath during the championship celebration. Although he preferred to drink red wine rather than beer, taking a beer bath was one of the Bundesliga traditions. Van Gaal took a beer bath after Bayern won the championship and won the Champions League once in his career. So there was indeed some connection between van Gaal and beer.
The beer was a fermented beverage brewed from raw materials such as wheat sprout, hop, water, and yeast. It was one of the drinks commonly seen in many novels. For example, in Harry Potter and the Sorcerer's Stone, Harry and his friends drink beer in the bar of Hogwarts Castle.
Daniel was a man who was very faithful to his God. He was living in a foreign land under a different king. But he didn't abandon his religious practices even when it was against the king's orders.