God is not a man to speak lie. He is full of Truths. In the beginning God told Adam and Eve the truth. But they did not take it for granted and lost their relation with God. After that God gave truthful commandments to Israelites. They also did not take it for granted and remains under curses. Then finally God send His only Son i.e. Jesus Christ to reveal heavenly truths in this world. Jesus used to speak like that “I tell You the Truth” (John 3:3; Matthew 17:20 etc) and in Hindi Bible we found Truth twice. But this world did not recognize Him, His teaching, even His sender and crucified Him. And the final truth is that who deny Jesus Christ will go in the lake of fire (Hell).