John Trapp on Galatians 3:4

Verſe 4. If it be in vain] q. d. It is not in vain. God keepeth the feet of the Saints, that they cannot altogether looſe the things they have wrought, they cannot fall below his ſupporting grace: the Lord puts under his hand, Pſal. 37. Yet it cannot be denied that an hypocrite may ſuffer, and all in vain, 1 Cor. 13.3. as did Alexander the Copper-ſmith, who was near unto Martyrdome, Act. 19.34. See the Note on 1 Cor. 13.3.