'Love' in the Bible

The elder unto the elect lady and her children, whom I love in truth; and not I only, but also all they that know the truth;

Grace, mercy, peace shall be with us, from God the Father, and from Jesus Christ, the Son of the Father, in truth and love.

And now I beseech thee, lady, not as though I wrote to thee a new commandment, but that which we had from the beginning, that we love one another.

And this is love, that we should walk after his commandments. This is the commandment, even as ye heard from the beginning, that ye should walk in it.