The Shorter Catechism asks the question What is God? and answers with an 11-fold (potentially 21-fold) answer.
God is a Spirit,
infinite,
eternal,
and unchangeable
in his being,
wisdom,
power,
holiness,
justice,
goodness,
and truth.
The Larger Catechism expands the answer (Question 7) so that it includes 20 terms.
God is a Spirit, in and of himself
infinite in being,
glory,
blessedness,
and perfection;
all-sufficient,
eternal,
unchangeable,
incomprehensible,
everywhere present,
almighty,
knowing all things,
most wise,
most holy,
most just,
most merciful
and gracious,
long-suffering,
and abundant in goodness
and truth.