This Bible contradiction is from the Skeptic's Annotated Bible.
Acts 1:24 View context
And they prayed, and said, Thou, Lord, which knowest the hearts of all [men], shew whether of these two thou hast chosen,
Psalm 44:21 View context
Shall not God search this out? for he knoweth the secrets of the heart.
Psalm 139:2-3 View context
Thou knowest my downsitting and mine uprising, thou understandest my thought afar off.
Thou compassest my path and my lying down, and art acquainted [with] all my ways.
Deuteronomy 8:2 View context
And thou shalt remember all the way which the LORD thy God led thee these forty years in the wilderness, to humble thee, [and] to prove thee, to know what [was] in thine heart, whether thou wouldest keep his commandments, or no.
Deuteronomy 13:3 View context
Thou shalt not hearken unto the words of that prophet, or that dreamer of dreams: for the LORD your God proveth you, to know whether ye love the LORD your God with all your heart and with all your soul.
2 Chronicles 32:31 View context
Howbeit in [the business of] the ambassadors of the princes of Babylon, who sent unto him to enquire of the wonder that was [done] in the land, God left him, to try him, that he might know all [that was] in his heart.