Adam Clarke on Psalms 22:12

Many bulls have compassed me - The bull is the emblem of brutal strength, that gores and tramples down all before it. Such was Absalom, Ahithophel, and others, who rose up in rebellion against David; and such were the Jewish rulers who conspired against Christ.

Strong bulls of Bashan - Bashan was a district beyond Jordan, very fertile, where they were accustomed to fatten cattle, which became, in consequence of the excellent pasture, the largest, as well as the fattest, in the country. See Calmet. All in whose hands were the chief power and influence became David's enemies; for Absalom had stolen away the hearts of all Israel. Against Christ, the chiefs both of Jews and Gentiles were united.