'Perceive' in the Bible

that seeing they may see and not perceive, and hearing they may hear and not understand, lest they may turn, and the sins may be forgiven them.'

and he saith to them, 'So also ye are without understanding! Do ye not perceive that nothing from without entering into the man is able to defile him?

And Jesus having known, saith to them, 'Why do ye reason, because ye have no loaves? do ye not yet perceive, nor understand, yet have ye your heart hardened?