Proverbs 2:3

Yea, if thou criest after knowledge ,.... Of God, Christ, and the Gospel; not only bow the ear and bend the mind to these things, but importunately and fervently pray for them; not only attend the ministry of the word by men, but cry to God to give the Spirit of wisdom and revelation in the knowledge of divine and spiritual things; which supposes some sense of a want of it, an hearty desire for it, having some apprehension of the worth and value of it; and that it is to be had, as there is indeed great reason to hope for and expect it, James 1:5 ;

and liftest up thy voice for understanding ; for Christ, who is understanding as well as wisdom, Proverbs 8:14 ; or rather for an understanding of the Gospel and the mysteries of it, which men do not naturally understand; and for which there must be an understanding given, or the eyes of the understanding must be enlightened; or Christ, by his spirit and grace, must open the understanding, that it may understand these things; which is granted to those who lift up their voice in prayer for it.