scripture on witnessing?

Here is some verse that talk about witnessing

Isa 40:3 The voice of him that crieth in the wilderness, Prepare ye the way of the LORD, make straight in the desert a highway for our God.

Witnessing

When a person witnesses he tells what he knows about a particular subject. We are told to be witnesses for Christ in Acts 1:8, so witnessing is simply a matter of telling someone about the salvation that the Lord Jesus Christ freely gives to all who will receive Him. A true Christian will not be ashamed to witness for the Lord (Mk. 8:38; Rom. 1:16; 10:11).

Rom 1:16 ¶ For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.

Rom 10:11 For the scripture saith, Whosoever believeth on him shall not be ashamed.

Mar 8:38 Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels.

Mat 3:1 In those days came John the Baptist, preaching in the wilderness of Judaea,

Mat 3:2 And saying, Repent ye: for the kingdom of heaven is at hand.

Mat 3:3 For this is he that was spoken of by the prophet Esaias, saying, The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

Mar 1:2 As it is written in the prophets, Behold, I send my messenger before thy face, which shall prepare thy way before thee.

Mar 1:3 The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

Isa 35:8 And an highway shall be there, and a way, and it shall be called The way of holiness; the unclean shall not pass over it; but it [shall be] for those: the wayfaring men, though fools, shall not err [therein].

Isa 57:14 And shall say, Cast ye up, cast ye up, prepare the way, take up the stumblingblock out of the way of my people.

Isa 62:10 Go through, go through the gates; prepare ye the way of the people; cast up, cast up the highway; gather out the stones; lift up a standard for the people.

Isa 62:11 Behold, the LORD hath proclaimed unto the end of the world, Say ye to the daughter of Zion, Behold, thy salvation cometh; behold, his reward [is] with him, and his work before him.

Mal 3:1 Behold, I will send my messenger, and he shall prepare the way before me: and the Lord, whom ye seek, shall suddenly come to his temple, even the messenger of the covenant, whom ye delight in: behold, he shall come, saith the LORD of hosts.

Mal 4:5 Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD:

Luk 1:17 And he shall go before him in the spirit and power of Elias, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord.

Here is a verse that might be what you are looking for, if not, then at least I tried:

1 John 3:18  My little children, let us not love in word, neither in tongue; but in deed and in truth.

I encourage you to read my presentation of the Gospel of Jesus Christ:

http://www.mychurch.org/blog/466515/True-Salvation

UPDATE:

Ok, what about this verse:

Matthew 5:16  Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.

Is a wife who is one of Jehovah’s Witnesses encouraged to ignore her husband’s wishes if he does not share her beliefs? No. The apostle Peter wrote: “You wives, be in subjection to your own husbands, in order that, if any are not obedient to the word, they may be won without a word through the conduct of their wives, because of having been eyewitnesses of your chaste conduct together with deep respect.”—1 Peter 3:1, 2.