Worship

Isaiah 43
24 Thou hast bought me no sweet cane with money, neither hast thou filled me with the fat of thy sacrifices: but thou hast made me to serve with thy sins, thou hast wearied me with thine iniquities.

It pleases God to be worshipped. Here, He complains that the Hebrews are not taking their worship of God seriously.

In Old Testament times, He was pleased with morning and evening sacrifices, when these sacrifices were sincere. In New Testament times, He is pleased with morning and evening Bible study and prayer, when Bible study is sincere and applied to our daily lives.

It pleases God to be worshipped. This, has never changed....

2 Corinthians 8
7 Therefore, as ye abound in every thing, in faith, and utterance, and knowledge, and in all diligence, and in your love to us, see that ye abound in this grace also.