"O you who have believed, enter into Islam completely"—meaning: all of you into Islam—"and do not follow the footsteps of Satan"—meaning: his command.
﴿يَا أَيهَا الَّذِينَ آمَنُوا ادْخُلُوا فِي السِّلْمِ كَافَّة﴾ يَعْنِي: فِي الْإِسْلَام جَمِيعًا ﴿وَلا تتبعوا خطوَات الشَّيْطَان﴾ يَعْنِي: أمره.