Charles Spurgeon Commentary 1 John 3:20-23

"because if our heart condemn us, God is greater than our heart, and knoweth all things. Beloved, if our heart condemn us not, we have boldness toward God; and whatsoever we ask we receive of him, because we keep his commandments and do the things that are pleasing in his sight. And this is his commandment, that we should believe in the name of his Son Jesus Christ, and love one another, even as he gave us commandment." — 1 John 3:20-23 (ASV)

For if our heart condemn us, God is greater than our heart, and knows all things. Beloved, if our heart condemn us not, then have we confidence toward God. And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight. And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.

Faith works by love; we believe on the name of the Lord Jesus, God's well-beloved and only-begotten Son, and that faith leads us to love all who bear his holy name.