Passage
For if our heart condemn us, God is greater than our heart, and knoweth all things.
For if our heart condemn us, God is greater than our heart, and knoweth all things.
1 John 3:18 My little children, let us not love in word, neither in tongue; but in deed and in truth.
1 John 3:19 And hereby we know that we are of the truth, and shall assure our hearts before him.
1 John 3:20 For if our heart condemn us, God is greater than our heart, and knoweth all things.
1 John 3:21 Beloved, if our heart condemn us not, then have we confidence toward God.
1 John 3:22 And whatsoever we ask, we receive of him, because we keep his commandments, and do those things that are pleasing in his sight.
The verse centers on "all things", "condemn", "heart", "greater", "than", and "knoweth". It is saying that the verse draws attention to "all things" and "condemn", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 19's "And hereby we know that we are..." into verse 21's "Beloved if our heart condemn us not...", so "all things" and "condemn" belong inside that flow. In 1 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "all things" and "condemn" with trust shaped by these words, not by a vague optimism outside the passage.