"If you seek it like silver and search for it like hidden treasure--then you will understand the fear of the LORD and discover the knowledge of God!" Proverbs 2:4-5
"The Bible is no lazy man's book! Much of its treasure, like the valuable minerals stored in the bowels of the earth, only yield up themselves to the diligent seeker." —Arthur Pink
"Do not be satisfied with a superficial survey of Scripture, as many Christians are. These are not the days of contemplation as the old Puritan times were, we are too apt to be superficial; but do remember that while there are nuggets of gold upon the very surface of Scripture, yet the most valuable mines of gold are far down!" —Charles Spurgeon
"Truth lies deep, and must be dug for." —William Gurnall
"Strive to penetrate to the bottom of Divine truths, and never be content with a superficial knowledge." —David Brainerd
"Dig for the truth like a man digging for Australian gold!" —J. C. Ryle
"Wisdom is supreme; therefore get wisdom. Though it cost all you have, get understanding!" Proverbs 4:7