A 'retreat' is a gathering in a church for praise and worship to your God (e.g. Jesus, Allah, Krishna) and to understand your religion better.
I attended a retreat this weekend and I learnt many new things. Among them was the hymn 'Give me Oil in my Lamp'. The hymn was very catchy and we all clapped while singing. It was fun.
'Pride goes before a fall' - arrogrance and selfishness will take you nowhere. It took King Saul to his death. Long Live King David (no pun intended).
It was a long but educational retreat. Amen.