Joshua 24: 1-2, 15-18
Joshua asks the newly liberated Israelites whom they would worship – the gods of their neighbours, or the God who brought them out of Egypt.  Their choice would bind them to the true God forever. 

Ephesians 5: 21-32
In this letter married couples are urged to respect and serve each other, self-sacrificially, with love.  Such is the relationship between Christ and his Church. 

John 6: 60-69
Jesus responds to the difficulties of his followers over his teaching on the Eucharist.  He challenges them to follow him, or leave.  The apostles know that with him is life eternal.