Here is, 1. A repetition of what was said before (v. 5), for we have
need to be again and again warned of the danger of the sin of lying and
false-witness-bearing, since nothing is of more fatal consequence. 2.
An addition to it in one word; there it was said, He that speaks lies
shall not escape, and intimated that he shall be punished. Here it is
said, His punishment shall be such as will be his destruction: he shall
perish; the lies he forged against others will be his own ruin. It is a
damning destroying sin.