John Wesley on Isaiah 43:23

Honoured - Either thou didst neglect sacrificing to me; or didst perform it merely out of custom or didst dishonour me, and pollute thy sacrifices by thy wicked life. Although - Altho' God had not laid such heavy burdens upon them, nor required such costly offerings, as might give them cause to be weary, nor such as idolaters did freely perform in the service of their idols.