"And these examples We present to the people"—meaning: We describe them and clarify them—"but none will understand them except the knowledgeable," meaning: the believers.
﴿وَتلك الْأَمْثَال نَضْرِبهَا للنَّاس﴾ أَيْ: نَصِفُهَا وَنُبَيِّنُهَا ﴿وَمَا يَعْقِلُهَا إِلَّا الْعَالمُونَ﴾ يَعْنِي: الْمُؤمنِينَ