Conversely, can someone be saved by love and good works, without faith in Jesus Christ?

It is impossible for a person who has no faith in God to truly love him. Moreover, fallen human beings, ruined by sin, cannot accomplish works truly acceptable to God without receiving, through faith in Jesus Christ, spiritual strength and grace from God, “apart from me, you can do nothing” (Joh 15:5; see Q307, Q484). The Scripture teaches: “without faith it is impossible to please God, for whoever comes to God must believe that he exists and that he rewards those who seek him” (Heb 11:6; see Q003, Q077).

Those who are “appointed to eternal life” (Act 13:48; see Q292) and pleasing to God are called not only to faith in Jesus Christ, but to “faith working through love” by the power of the Holy Spirit: “we know that all things work together for good for those who love God, who are called according to his purpose. For those whom he foreknew he also predestined to be conformed to the image of his Son… and those whom he predestined he also called; and those whom he called he also justified; and those whom he justified he also glorified” (Rom 8:28–30; see On foreknowledge and predestination; see Q008, Q078).

Therefore, we too can say with the Apostle: “through the Spirit, we wait by faith for the hope of righteousness” (Gal 5:5).