'Truth' in the Bible

The elder to the chosen lady and her children, whom I love in truth; and not only I, but also all who know the truth,

for the sake of the truth which abides in us and will be with us forever:

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.

I was very glad to find some of your children walking in truth, just as we have received commandment to do from the Father.