Who takes in hand to turne this sacred booke

WHO takes in hand to turne this sacred booke,
And heavenly wisedome, doth from hence require,
His handes be cleane, I wish him first to looke:
No Dog or Swine, that walloweth in the mire,
Let dare to come, this pretious Iewell nigh,
The foe to filth, and all impuritie.

But if thou needes wilt launch into this sea,
Where Lambes may wade, and Elephants may swimme,
Cast all vncleane affections away,
And first with heartie prayer call on him,
Whose holy Spirit must guide thee in the sence,
A thousand times else better thou wert thence.