The Bible describes a person's life as a path or road. It also describes Christianity as God's path. In the book of Acts, it is simply called the Way. Perhaps this is because Jesus called himself the way (John 14:6). The Bible says Jesus is the only way.
Therefore, on God's path, a person should "not deviate to the right or to the left" (2 Kings 22:2, NET).
Read the whole article at the link above. It is written in simple style. The intended audience is people who use English as a second language.