"Jacob went close to his father Isaac, who touched him and said, “The voice is the voice of Jacob, but the hands are the hands of Esau.”" (Genesis 27:22).
This is a picture of deception. It's a reminder that we need to pray for discernment. In Matthew 7:21, Jesus warns us: "Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but only the one who does the will of my Father who is in heaven." Paul warns us against pepole who "have a form of godliness, but deny its power" (2 Timothy 3:5). While we must never forget Jesus' words, "Do not judge, or you too will be judged" (Matthew 7:1), we must take seriously the call to distinguish between good and evil. This is a mark of spiritual maturity: "Solid food is for the mature, who by constant use have trained themselves to distinguish good from evil." (Hebrews 5:14).