Sincerity requires that the thoughts expressed should be real to the singer as well as to the poet. They may not be such as would have occurred to him, and the expression may be altogether beyond his powers of origination, but they must be such as he can think in his best moments or may be helped to enter into at the hour of prayer. Sincerity does not require that all our hymns should be on the lowest level common to a general congregation, but that the sentiment expressed, the emotion presupposed or to be excited, be suited to the heart of man in the presence of his Father in heaven. In the compilation of a hymn-book something must be left to the good sense and judgement of those who are to use it; and there is no part of public worship which calls for more serious and intelligent consideration than the selection of hymns suited to the occasion and to the congregation. It is perhaps too much to say that sincerity also requires that the writer of a hymn should be not unworthy of a place in the Christian choir. Happily this question rarely arises. The author’s name is often an aid to devotion, and in most hymn-books there is hardly a name—except Dryden’s—that seems wholly unfitted to this sacred service. 2. _Reverence._—‘God is in heaven, and thou upon earth: therefore let thy words be few,’ restrained, seemly. The profoundest reverence, the lowliest adoration, shrinks from utterance when it hears and sees unspeakable things. This is sublimely taught in those great lines of Dante: Here memory mocks the toil of genius. Christ Beamed on that cross; and pattern fails me now. But whoso takes his cross, and follows Christ, Will pardon me for that I leave untold, When in the fleckered dawning he shall spy The glitterance of Christ.[26] Even so profuse a hymn-writer as Watts feels that there are times when it is best to ‘leave untold’ what the heart most desires to tell: A solemn reverence checks our songs, And praise sits silent on our tongues. It is a less sublime, but not less acceptable, form of worship which attempts that which yet it knows to be impossible. Praise must be heard in Zion lest if men hold their peace the very stones should cry out. Nor is it right that awe should silence love. We worship the King, eternal, immortal, invisible, yet even so we praise Him who ‘like as a Father pitieth His children’; and when we sing praise to Christ as God, we remember that He called His disciples not servants, but friends. Dr. Watts utters the thought of many hearts in one of his finest hymns— Join all the glorious names Of wisdom, love, and power, That ever mortals knew, That angels ever bore; All are too mean to speak His worth, Too mean to set my Saviour forth. But O what gentle terms, What condescending ways, Doth our Redeemer use, To teach His heavenly grace; Mine eyes with joy and wonder see What forms of love He bears for me!