18 distinct Greek words appear in this verse.

• Faith
• Judgment
• Love

5 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1John 2:5 — But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
• 1John 2:28 — And now, little children, abide in him; that, when he shall appear, we may have confidence, and not be ashamed before him at his coming.
• 1John 2:28 — And now, little children, abide in him; that, when he shall appear, we may have confidence, and not be ashamed before him at his coming.
• 1John 3:1 — Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.
• 1John 3:3 — And every man that hath this hope in him purifieth himself, even as he is pure.
• 1John 3:19 — And hereby we know that we are of the truth, and shall assure our hearts before him.
• 1John 3:21 — Beloved, if our heart condemn us not, then have we confidence toward God.
• 1John 4:12 — No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.
• 1John 4:12 — No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.
• 1Pet 3:16 — Having a good conscience; that, whereas they speak evil of you, as of evildoers, they may be ashamed that falsely accuse your good conversation in Christ.
• 1Pet 4:1 — Forasmuch then as Christ hath suffered for us in the flesh, arm yourselves likewise with the same mind: for he that hath suffered in the flesh hath ceased from sin;
• 1Pet 4:13 — But rejoice, inasmuch as ye are partakers of Christ’s sufferings; that, when his glory shall be revealed, ye may be glad also with exceeding joy.
• 2Pet 2:9 — The Lord knoweth how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished:
• 2Pet 3:7 — But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
• Heb 10:19 — Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus,
• Heb 12:2 — Looking unto Jesus the author and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God.
• Isa 32:17 — And the work of righteousness shall be peace; and the effect of righteousness quietness and assurance for ever.
• Jas 2:22 — Seest thou how faith wrought with his works, and by works was faith made perfect?
• John 15:20 — Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also.
• Matt 10:15 — Verily I say unto you, It shall be more tolerable for the land of Sodom and Gomorrha in the day of judgment, than for that city.
• Matt 10:15 — Verily I say unto you, It shall be more tolerable for the land of Sodom and Gomorrha in the day of judgment, than for that city.
• Matt 10:25 — It is enough for the disciple that he be as his master, and the servant as his lord. If they have called the master of the house Beelzebub, how much more shall they call them of his household?
• Matt 11:22 — But I say unto you, It shall be more tolerable for Tyre and Sidon at the day of judgment, than for you.
• Matt 11:22 — But I say unto you, It shall be more tolerable for Tyre and Sidon at the day of judgment, than for you.
• Matt 11:24 — But I say unto you, That it shall be more tolerable for the land of Sodom in the day of judgment, than for thee.
• Matt 12:36 — But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.
• Rom 8:29 — For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren.