So Machen thought highly of Christian day schools among the Dutch Reformed. He also thought that public schools had their place. And to round out the picture, here he is on Lutheran education:

. . . it should, I think, be made much harder than it now is to enter the Church: the confession of faith that is required should be a credible confession: and if it becomes evident upon examination that a candidate has no notion of what he is doing, he should be advised to enter upon a course of instruction before he becomes a member of the Church. Such a course of instruction, moreover, should be conducted not by comparatively untrained laymen, but ordinarly by the ministers: the excellent institution of the catechetical class should be generally revived. These churches, like the Lutheran bodies in America, which have maintained that institution, have profited enormously by its employment; and their example deserves to be generally followed. (What is Faith, pp. 156-57)

Now we’re talking Christian education.