When Jesus died and was resurrected we see that even way back in time man was prone to lying as a large amount of money was given unto the soldiers to say that “His disciples came at night,and stole Jesus while they were asleep”yet even when they did see Him there were some who doubted (Matthew 28:7-17). 7 And go quickly, and tell his disciples that he is risen from the dead; and, behold, he goeth before you into Galilee; there shall ye see him: lo, I have told you.8 And they departed quickly from the sepulchre with fear and great joy; and did run to bring his disciples word.9 And as they went to tell his disciples, behold, Jesus met them, saying, All hail. And they came and held him by the feet, and worshipped him.10 Then said Jesus unto them, Be not afraid: go tell my brethren that they go into Galilee, and there shall they see me.11 Now when they were going, behold, some of the watch came into the city, and shewed unto the chief priests all the things that were done.12 And when they were assembled with the elders, and had taken counsel, they gave large money unto the soldiers,13 Saying, Say ye, His disciples came by night, and stole him away while we slept.14 And if this come to the governor’s ears, we will persuade him, and secure you.15 So they took the money, and did as they were taught: and this saying is commonly reported among the Jews until this day.16 Then the eleven disciples went away into Galilee, into a mountain where Jesus had appointed them.17 And when they saw him, they worshipped him: but some doubted.
Jesus taught in such black and white terms and He shows this when it came to those who truly followed Him and were known as the sheep who know His voice.He said if we are of God we hear His words and believe His truth!(John 8:42-47), 42 Jesus said unto them, If God were your Father, ye would love me: for I proceeded forth and came from God; neither came I of myself, but he sent me.43 Why do ye not understand my speech? even because ye cannot hear my word.44 Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.45 And because I tell you the truth, ye believe me not.46 Which of you convinceth me of sin? And if I say the truth, why do ye not believe me?47 He that is of God heareth God’s words: ye therefore hear them not, because ye are not of God. (John 14:22-27), (John 10:1-5,14-16).