Abu Sa'id Al-Khudri (May Allah be pleased with him) said:
The Prophet ﷺ said, "When the son of Adam gets up in the morning, all the limbs humble themselves before the tongue and say: 'Fear Allah for our sake because we are with you: (i.e., we will be rewarded or punished as a result of what you do) if you are straight, we will be straight; and if you are crooked, we will become crooked."'

[At- Tirmidhi].

وعن أبي سعيد الخدري رضي الله عنه عن النبي ﷺ قال: “إذا أصبح ابن آدم، فإن الأعضاء كلها تكفر اللسان، تقول: اتقِ الله فينا، فإنما نحن بك: فإن استقمت استقمنا وإن اعوججت اعوججنا”. ((رواه الترمذي)). "معني “تكفر اللسان” أي تذل وتخضع ل.