“Reader, as long as you live, beware of a religion in which there is not much of the cross. You live in times when the warning is sadly needful. Beware, I say again, of a religion without the cross.
“There are hundreds of places of worship, in this day, in which there is every thing almost except the cross. There is carved oak and sculptured stone. There is stained glass and brilliant painting. There are solemn services and a constant round of ordinances. But the real cross of Christ is not there. Jesus crucified is not proclaimed in the pulpit. The Lamb of God is not lifted up, and salvation by faith in him is not freely proclaimed. And hence all is wrong. Beware of such places of worship. They are not apostolical. They would not have satisfied St. Paul.
“There are thousands of religious books published in our times, in which there is everything except the cross. They are full of directions about sacraments and praises of the church. They abound in exhortations about holy living, and rules for the attainment of perfection. They have plenty of fonts and crosses both inside and outside. But the real cross of Christ is left out. The Savior and His dying love are either not mentioned, or mentioned in an unscriptural way. And hence they are worse than useless. Beware of such books. They are not apostolical. They would never have satisfied St. Paul. ”
–Excerpt from here.