Because the Amish lifestyle is a deliberate effort to separate from the world and maintain self sufficiency, they decided in the early part of the century that linking with electrical wire would constitute a connection with the world and would violate the Bible's instruction not to be conformed with the world.

Why Amish do not use electricity?

The Amish don't believe electricity is bad; they believe having ready access to it will create temptation that can lead to television and other electrical luxuries that could hurt their values.

Why do the Amish not use technology?

One reason that the Amish do not readily embrace new technology is that the old methods are included in the ordnung; therefore any changes require discussion and discernment. ... This is taken to mean that electric power lines or telephone lines would “yoke”, or join together, an Amish home with their less holy neighbours.