'Flesh and Blood' in the Bible

And Jesus, answering, said to him, "Happy are you, Simon Bar-Jonah; because flesh and blood did not reveal it to you, but My Father Who is in Heaven.

And this I say, brethren, that flesh and blood cannot inherit the Kingdom of God; neither does corruption inherit incorruption.

to reveal His Son in me, that I might proclaim the good news of Him among the gentiles; straightway I conferred not with flesh and blood,