Why did Wukong interrupt Tang Priest and Scorpion Essence?

To defend the Tang Priest. On the surface, Tang Priest was defending himself, because Queen Xiliang was tied up tightly and had to leave in a hurry. In fact, in the face of scorpion essence's tough questioning of Buddhism and Zen, Tang Priest has collapsed. Tang Priest, a layman surnamed Chen, is from Luoyang, Henan. Nicknamed "Xuanzang", he was honored as "Master Sanzang". He is called "Tang Priest" and nicknamed "Jiang Liuer" in the secular world.