John 2:24

"But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him."

"And Jesus knowing their thoughts said, Wherefore think ye evil in your hearts?"

"And they prayed, and said, Thou, Lord, which knowest the hearts of all men, shew whether of these two thou hast chosen,"

"Neither is there any creature that is not manifest in his sight: but all things are naked and opened unto the eyes of him with whom we have to do."

"And thou, Solomon my son, know thou the God of thy father, and serve him with a perfect heart and with a willing mind: for the LORD searcheth all hearts, and understandeth all the imaginations of the thoughts: if thou seek him, he will be found of thee; but if thou forsake him, he will cast thee off for ever."

"But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for the LORD seeth not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart. outward...: Heb. eyes"

"The heart is deceitful above all things, and desperately wicked: who can know it?"

"But I know you, that ye have not the love of God in you."

"Now are we sure that thou knowest all things, and needest not that any man should ask thee: by this we believe that thou camest forth from God."

"And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works."