The Apostle Paul
Philippians 3:12ESV·traditional attribution

Not that I have already obtained this or am already perfect, but I press on to make it my own, because Christ Jesus has made me his own.

John Calvin Reformed @genevareformer

12 Not as though I had already apprehended Paul insists upon this, that he may convince the Philippians that he thinks of nothing but Christ — knows nothing else — desires nothing else — is occupied with no other subject of meditation.

Matthew Henry Presbyterian @wholebiblehenry

We now heard what the apostle renounced; let us now see what he laid hold on, and resolved to cleave to, namely, Christ and heaven. He had his heart on these two great peculiarities of the Christian religion. I. The apostle had his heart upon Christ as his righteousness. This is illustrated in several instances. 1.

Commenting on Philippians 3:9-14

John Gill Reformed Baptist @doctorgill

Brethren, I count not myself to have apprehended,.... That for which he was apprehended of Christ: he had not attained to perfect knowledge, was not come to the mark, had not received the prize, or laid hold on eternal life; though he had received so much grace, and such gifts, as had qualified him for an apostle; and he had been so many years in...