1 John 3:21

¹⁹ And hereby we know that we are of the truth, and shall assure our hearts before him.

²⁰ For if our heart condemn us, God is greater than our heart, and knoweth all things.

Beloved, if our heart condemn us not, then have we confidence toward God.

²² And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.

²³ 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.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: Beloved, if our hearts do not condemn us, we have confidence before God,
KJV: Beloved, if our heart condemn us not, then have we confidence toward God.
WEB: Beloved, if our hearts don’t condemn us, we have boldness toward God;
ASV: Beloved, if our heart condemn us not, we have boldness toward God;
DARBY: Beloved, if our heart condemn us not, we have boldness towards God,
BLB: Beloved, if our heart may not condemn [us], we have confidence toward God,

ÅB: Dere elskede! dersom vårt hjerte ikke fordømmer oss, da har vi frimodighet for Gud,
OTB: Kjære venner, hvis våre hjerter er i fred, har vi tillit for Gud;
B1930: I elskede! dersom vårt hjerte ikke fordømmer oss, da har vi frimodighet for Gud,

1 John 2:28
And now, little children, abide in him; that, when he shall appear, we may have confidence, and not be ashamed before him at his coming.
Read in context
Hebrews 4:16
Let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.
Read in context
2 Corinthians 1:12
For our rejoicing is this, the testimony of our conscience, that in simplicity and godly sincerity, not with fleshly wisdom, but by the grace of God, we have had our conversation in the world, and more abundantly to you-ward.
Read in context
Psalms 101:2
I will behave myself wisely in a perfect way. O when wilt thou come unto me? I will walk within my house with a perfect heart.
Read in context
Psalms 7:3–5
O LORD my God, if I have done this; if there be iniquity in my hands;
Read in context
1 John 5:14
And this is the confidence that we have in him, that, if we ask any thing according to his will, he heareth us:
Read in context
Job 22:26
For then shalt thou have thy delight in the Almighty, and shalt lift up thy face unto God.
Read in context
Hebrews 10:22
Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.
Read in context