Proverbs 23:15-16 My son, if thine heart be wise, my heart shall rejoice, even mine. Yea, my reins shall rejoice, when thy lips speak right things.
‘Yea, my reins shall rejoice, when thy lips speak right things.’ The word “reins” refers to the innermost being – the hidden seat of thoughts, motives, and deepest emotions. It is closely linked with the heart, not in a superficial sense, but as the core of a person’s moral and spiritual life. Proverbs frequently uses this language to show that God and godly people are concerned not only with outward behaviour, but with what is formed within (23:12, 15, 17, 19, 26, 33).
Here, the verse deepens the thought of parental and spiritual joy: it is not only the visible success of a child that brings gladness, but the inward alignment of their life with truth. When “thy lips speak right things,” it reflects more than correct speech – it reveals a heart that has been shaped by wisdom. Speech becomes the overflow of inward integrity (Mat. 12:34). Truthful, just, and righteous words are evidence that the inner life has been governed by wisdom rather than folly. This brings deep, settled joy – not emotional excitement, but a profound satisfaction in seeing character formed rightly.
There is also a spiritual principle here: right speech is one of the clearest indicators of inward transformation. What a person consistently speaks reveals what rules their “reins.” Wisdom, therefore, rejoices not merely in external obedience but in internal consistency between heart and mouth.
Living the Word 