pros is a preposition marking direction, presence, relation, or orientation toward a person, thing, or purpose.

As a preposition, pros marks an orientation or relation toward a person, thing, or stated end: coming or speaking to people, being with someone, acting toward God or others, and directing something for a purpose.

1. Preposition marking orientation and relation · dominant

   The supplied forms are tagged simply as Preposition. In 1 Corinthians 16:5 the APB renders a planned arrival "to you," while 1 John 3:21 renders boldness "toward God"; 1 Corinthians 12:7 places the manifestation of the Spirit in relation to "what is profitable," and 1 Corinthians 13:12 renders direct encounter as "face to face." These clauses show a grammatical word connecting an action, state, or quality with its destination, counterpart, or intended end.

   1 Corinthians 16:51 John 3:211 Corinthians 12:71 Corinthians 13:121 Thessalonians 4:121 John 1:2

In the Anselm Project Bible: It variously presents the relation with phrases such as "to you," "toward God," "for what is profitable," "with the Father," and "face to face," and may absorb the preposition into the English clause.