AMDG Meaning: Ad Maiorem Dei Gloriam
Four letters at the top of a lot of Catholic school homework. They are the whole point of the work underneath them.
What AMDG means
Ad maiorem Dei gloriam
For the greater glory of God.
AMDG is the abbreviation of Ad Maiorem Dei Gloriam. Ad, for or toward. Maiorem, greater. Dei, of God. Gloriam, glory. It is a statement of purpose: whatever this is, I am doing it so God gets the credit, and more of it.
St. Ignatius and the Jesuits
The phrase belongs to St. Ignatius of Loyola, the soldier who got hit by a cannonball, read the lives of the saints while he recovered, and founded the Society of Jesus. It runs all through the Jesuit Constitutions, and it became the order's motto. Ignatius did not mean "for the glory of God" in a general way. He meant the greater glory: when you have two good options, pick the one that gives God more. It is a decision rule, not a slogan.
Why Catholic students write it on their papers
If you went to a Jesuit school, or a lot of Catholic schools, you were probably taught to write AMDG at the top of every assignment. Some schools use JMJ, Jesus, Mary and Joseph, instead. Same idea. Before you start, you give the work away. Bach did a version of this too: he signed the end of his scores SDG, Soli Deo Gloria, glory to God alone.
How to actually live it
AMDG is the opposite of a flex. You put in the work, you do it well, and when it goes right you point up instead of at yourself. Saint Paul says it plainly: whatever you do, do all to the glory of God (1 Corinthians 10:31). That is the energy behind our God Did tee. You did the work. God did it.
The other Latin we put on things
If AMDG is your kind of thing, start with Vade Retro Satana, the St. Benedict prayer, and the two monograms of Christ's name, IHS and the Chi Rho.
"Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God."1 Corinthians 10:31