1 John 5:2 - 3
NKJV - 2 By this we know that we love the children of God, when we love God and keep His commandments. 3 For this is the love of God, that we keep His commandments. And His commandments are not burdensome.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
The just shall live by faith. Romans 4:5-8 Romans 3:26-28 John 6:40 John 6:47 and John 3:18.