ASV: prove all things; hold fast that which is good;
BBE: Let all things be tested; keep to what is good;
DBY: but prove all things, hold fast the right;
KJV: Prove all things; hold fast that which is good.
WEY: but test all such, and retain hold of the good.
WBS: Prove all things; hold fast that which is good.
WEB: Test all things, and hold firmly that which is good.
YLT: all things prove; that which is good hold fast;
