What first attracted me to the writings of A. W. Tozer was a booklet on worship. Right now the topic of his daily devotionals is worship. Here is yesterday's:
But the Lord is in His holy temple. Let all the earth keep silence before Him.--Habakkuk 2:20
So I've got to tell you that if you do not worship God seven days a week, you do not worship Him on one day a week. There is no such thing known in heaven as Sunday worship unless it is accompanied by Monday worship and Tuesday worship and so on....
We come into God's house and say, "The Lord is in His holy temple, let us all kneel before Him." Very nice. I think it's nice to start a service that way once in a while. But when any of you enter your office Monday morning at 9 o'clock, if you can't walk into that office and say, "The Lord is in my office, let all the world be silent before Him," then you are not worshiping the Lord on Sunday. If you can't worship Him on Monday you didn't worship Him on Sunday. If you don't worship Him on Saturday you are not in very good shape to worship Him on Sunday.