And we do not make void,
but we establish, the law of God,
by faith in Christ. 
*In other words, in Christ is found the keeping of the law of God.
This is shown again in Galatians 2:17: “But if, while we seek to be justified by Christ, we ourselves also are found sinners, is therefore Christ the minister of sin? God forbid.”
*To be found sinners, is to be found transgressors of the law; for “sin is the transgression of the law.”
--Then since the Lord has set His everlasting “God forbid” against any suggestion that Christ is the minister of the transgression of the law, it follows as certainly that Christ ministers the keeping of the law."
A.T. Jones