G3922–παρεισέρχομαι–pareiserchomai

The law came in besides, that the trespass might abound; but where sin abounded, grace did abound more exceedingly;

παρεισῆλθεν, pareisēlthen “entered,”

This was because of the false brothers secretly brought in, who stole in to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage;

παρεισῆλθον pareisēlthon “came in by stealth”