G3922–παρεισέρχομαι–pareiserchomai

But law came in, in order that the offence might abound; but where sin abounded grace has overabounded,

παρεισῆλθεν, pareisēlthen “entered,”

and [supplied: it was] on account of the false brethren brought in surreptitiously, who came in surreptitiously to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage;

παρεισῆλθον pareisēlthon “came in by stealth”