1:10 Even though God had not yet destroyed Jerusalem as He had Sodom and Gomorrah, the city was like those corrupt towns in that the people and their rulers had turned from God's holy standard. The people needed to heed the instruction (Heb. torah) of their God.
1:11-15 The Israelites tended to fall into a pattern of thinking that religious ritual and their pagan neighbors' worship encouraged. They thought that going through the motions of worshipping God exactly as He specified satisfied Him. They forgot that God intended their ceremonies to be symbolic of their attitude toward Him. Their attitude to Him was more important than their flawless performance of worship rituals. Even their prayers would be ineffective if their attitude to God was not right (v. 15). We have the same problem today. This passage repeats descriptions of the Israelites' worship so often that the reader gets tired of them, just as God did.
1:16-17 Having shown what God does not want, Isaiah now told the people what He does want (cf. 66:1-4, 17). His demands are short and simple in contrast to the elaborate rituals described above (cf. Deut. 10:12-13; Mic. 6:8). Three negative commands relate to the past and five positive ones to the future. Washing (v. 16) is symbolic of repenting (cf. Acts 2:38; 13:24; Titus 3:5).
"The passage clearly reveals a concern over the social injustices of the time. Such social injustices, however, could only be corrected by a change of heart upon the part of individuals."25