Passage
Grace, mercy, and peace will be with us, from God the Father and from Jesus Christ, the Son of the Father, in truth and love.
2 John 1:3 (LSB)
Nearby Context
2 John 1:1 The elder to the elect lady and her children, whom I love in truth, and not only I, but also all who know the truth,
2 John 1:2 for the sake of the truth which abides in us and will be with us forever:
2 John 1:3 Grace, mercy, and peace will be with us, from God the Father and from Jesus Christ, the Son of the Father, in truth and love.
2 John 1:4 I rejoiced greatly to find some of your children walking in truth, just as we received commandment from the Father.
2 John 1:5 Now I ask you, lady, not as though I were writing to you a new commandment, but the one which we have had from the beginning, that we love one another.
Study Lenses
The verse centers on "grace", "mercy", "peace", "father", "jesus", "christ", and "truth". It is saying that salvation is received as God's gift through faith, so boasting is pushed out by the wording itself.
The nearby context moves from verse 2's "for the sake of the truth which..." into verse 4's "I rejoiced greatly to find some of...", so "grace" and "mercy" belong inside that flow. In 2 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "grace" and "mercy" with trust shaped by these words, not by a vague optimism outside the passage.