1 Corinthians 14:28

28.Let him speak to himself and to God “Let him enjoy,” says he, “his gift in his own conscience, and let him give thanks to God.” For in this way I explain the expression to speak to himself and to God, as meaning — to recognize in his own mind with thanksgiving the favor conferred upon him, (860) and to enjoy it as his own, when there is not an opportunity for bringing it forward in a public manner. For he draws a contrast between this secret way of speaking, and speaking publicly in the Church — which he forbids. (861)