How many ways are there to be justified?

There are some Biblical passages that can seem to support justification through something other than faith if the passages are taken in isolation. For example, Matthew 19:16-21 could be taken as evidence for salvation through selling your possessions and giving the money to the poor. John 6:53, if it's thought to refer to the eucharist, could be taken to prove justification through participation in the eucharist. John 13:8 teaches salvation through foot washing. Acts 2:38 teaches baptismal regeneration. Acts 8:17 teaches that we're justified through the laying on of hands. Etc.