The Apostle Paul
Ephesians 2:15ESV·traditional attribution

by abolishing the law of commandments expressed in ordinances, that he might create in himself one new man in place of the two, so making peace,

John Calvin Reformed @genevareformer

15. Having abolished in his flesh the enmity. The meaning of Paul’s words is now clear. The middle wall of partition hindered Christ from forming Jews and Gentiles into one body, and therefore the wall has been broken down. The reason why it is broken down is now added — to abolish the enmity, by the flesh of Christ.

Matthew Henry Presbyterian @wholebiblehenry

We have now come to the last part of the chapter, which contains an account of the great and mighty privileges that converted Jews and Gentiles both receive from Christ. The apostle here shows that those who were in a state of enmity are reconciled. Between the Jews and the Gentiles there had been a great enmity; so there is between God and every unregenerate man.

Commenting on Ephesians 2:14-22

John Gill Reformed Baptist @doctorgill

Having abolished in his flesh the enmity,.... The ceremonial law, as appears by what follows, even the law of commandments contained in ordinances; which consisted of many precepts, and carnal ordinances; and is so called because it was an indication of God's hatred of sin, by requiring sacrifice for it; and because it was an occasion of stirring up the enmity of the natural man...