Context is very much important. The Epistle to the Philippians was a letter to believers (not to non-believers) who had all likely been baptized, believed on Jesus Christ ... likely had hands (of the presbytery) laid on them or had the support and direction of the Holy Spirit, even had an anointing (AFAIK all kingly or priestly power in the OT was vis-a-vis an anointing).
Re: two donkeys. The impression I got is that he sat on the clothes (clothes = them).