Classic Poem

Lord, how can man preach thy eternal word?
He is a brittle crazy glass:
Yet in thy temple thou dost him afford
This glorious and transcendent place,
To be a window, through thy grace.

But when thou dost anneal in glass thy story,
Making thy life to shine within
The holy Preacher's; then the light and glory
More rev'rend grows, and more doth win;
Which else shows wat'rish, bleak, and thin.

Doctrine and life, colours and light, in one
When they combine and mingle, bring
A strong regard and awe: but speech alone
Doth vanish like a flaring thing,
And in the ear, not conscience ring.