I have accepted what that person said, and I have affirmed that God is truthful. (John 3:33)
This is another one of those statements that, as believers, we would automatically respond to with affirmation. John the Baptist, speaking of Jesus, says that everything He says is true. Of course! Absolutely!
Remember that in the first chapter of this book we say that the apostle John wrote that “In the beginning the Word already existed. The Word was with God, and the Word was God. … The Word became human and lived among us. We saw his glory. It was the glory that the Father shares with his only Son, a glory full of kindness and truth. (John 1:1, 14) John left no question that “The Word” he spoke of was Jesus. So, follow me here, if Jesus is the Word, and everything that Jesus says is truthful (3:33) then when the Bible says “In the beginning God created the heavens and the earth” we have the Word of God (Jesus) telling us that evolution is bunk! The Bible also says: “That's why a man will leave his father and mother and be united with his wife, and the two will be one” (Ephesians 5:31) and “Don't you know that wicked people won't inherit the kingdom of God? Stop deceiving yourselves! People who continue to commit sexual sins, who worship false gods, those who commit adultery, homosexuals, or thieves, those who are greedy or drunk, who use abusive language, or who rob people will not inherit the kingdom of God.” (1 Corinthians 6:9-10)
Okay, I know that I am touching on some sensitive subjects here, but this is what the Word says. Even though these were written by Paul to churches in the first century, we must accept them as God's Word, or else the entire Bible is in question. And yes, I know that there are so-called Christians who do question the Bible, but if we travel that path then we must also question the plan of Salvation, redemption and even Heaven itself.
By calling yourself a Christian, you are proclaiming that you have faith in Jesus Christ, the Word sent from God. This means all of the Word. what Jesus spoke when He walked on the earth as well as what He, through the Holy Spirit, inspired the Bible writer to record for our “teaching, pointing out errors, correcting people, and training them for a life that has God's approval” (2 Timothy 3:16). You can't pick and choose what you will believe and still call it Christianity. It will be a religion, but not one that God approves and certainly not one that will provide for your redemption.