Philemon 1:15
For perhaps he therefore departed for a season, that thou shouldest receive him for ever;
Cross-reference
Genesis 45:5–8
Parallel
In Genesis 45:5-8, Joseph sees God's hand in his separation — the same providential perspective Paul hints for Onesimus's departure.
Genesis 50:20
Parallel
In Genesis 50:20, Joseph sees God turning evil into good — the same divine purpose Paul suggests behind Onesimus's separation.