Little children, keep yourselves from idols. Amen.(1 John 5:21)

The elder unto the elect lady and her children, whom I love in the truth; and not I only, but also all they that have known the truth;(2 John 1:1)

For the truth's sake, which dwelleth in us, and shall be with us for ever.(2 John 1:2)

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

I rejoiced greatly that I found of thy children walking in truth, as we have received a commandment from the Father.(2 John 1:4)

And now I beseech thee, lady, not as though I wrote a new commandment unto thee, but that which we had from the beginning, that we love one another.(2 John 1:5)

And this is love, that we walk after his commandments. This is the commandment, That, as ye have heard from the beginning, ye should walk in it.(2 John 1:6)

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2 John 1:3 - Cross Reference

Hold fast the form of sound words, which thou hast heard of me, in faith and love which is in Christ Jesus. (2 Timothy 1:13)

Whosoever denieth the Son, the same hath not the Father: he that acknowledgeth the Son hath the Father also. (1 John 2:23)

To all that be in Rome, beloved of God, called to be saints: Grace to you and peace from God our Father, and the Lord Jesus Christ. (Romans 1:7)

And the grace of our Lord was exceeding abundant with faith and love which is in Christ Jesus. (1 Timothy 1:14)

Unto Timothy, my own son in the faith: Grace, mercy, and peace, from God our Father and Jesus Christ our Lord. (1 Timothy 1:2)

Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins. (1 John 4:10)

For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love. (Galatians 5:6)

The elder unto the elect lady and her children, whom I love in the truth; and not I only, but also all they that have known the truth; (2 John 1:1)

Thus saith the LORD of hosts; The fast of the fourth month, and the fast of the fifth, and the fast of the seventh, and the fast of the tenth, shall be to the house of Judah joy and gladness, and cheerful feasts; therefore love the truth and peace. (Zechariah 8:19)