If you've been on this board you know I don't believe in a god. Very rarely am I ever proselytized and on the rare occasions that it happens I normally just sit quiet and move on or politely inform the person I'm not interested and it ends peacefully.
However to me, if I were a hardcore believer in one of the main religions of the world I would think I'd be someone who proselytizes. Most religions as far as I can tell say non-believers belong in hell, I would find it very important to try to help someone avoid such a place. So I can certainly morally understand why people proselytize.
Do you agree? Disagree?
There are so many ways I could try to reply to this, and could probably write a book, lol. I love this topic, and am ever learning about it (sharing the Gospel) as it's always been in my heart big time. When someone knows the truth of Jesus, it's like He said, "It is finished." To me, that is the most important. After someone knows the truth of Christ, they can't "unknow" it. (And HE begins the "good" work..not ourselves.. "HE" does - all Glory to Him)
So...., overall, my response without using God's Word would be yes but "it depends on each situation, person, etc".
However, I need to back that up by sharing the Bible on this subject... because it's all of God. That is, when someone is born again and when God uses us to witness by His Spirit. Since God knows our hearts, He can use certain people at certain time for a certain Word from Him to others. When the Revelation of Jesus Christ comes upon a person, that is we KNOW He is the Lord, and we know this because this is by His Spirit alone. No "man" could have shown us this.
As for who God uses and when, that's all up to Him, and I'm still learning on this. It's all by His Spirit and only He knows the perfect timing. In the meantime, when I share the Gospel, I'll try to be gentle... but if someone is kicking against, or they don't want to hear it, I need to be done. I'm learning more and more to just back off and wipe the dust off so to speak. His will be done!
Here's some verses about witnessing, etc...
Acts 1:8 But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”
We never know when someone is born again...
John 3:8 The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. So it is with everyone born of the Spirit.”
God sents people out to share the Gospel...
Romans 10
14 How, then, can they call on the one they have not believed in? And how can they believe in the one of whom they have not heard? And how can they hear without someone preaching to them?
15 And how can anyone preach unless they are sent? As it is written: “How beautiful are the feet of those who bring good news!”
His Word is needed for faith to come about...
Romans 10:17
Consequently, faith comes from hearing the message, and the message is heard through the word about Christ.
Sadly for some, the Message of the Cross offends them rather than encourages them to seek God more....
1 Corinthians 1:18
For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
I love Charles Spurgeons quotes in relation to preaching about Christ:
///"It is a strange thing; but if Christ is fully preached, somehow men cannot be
indifferent to him. If they can be right away, and never hear of him, they may be
indifferent; but the true gospel either offends men, or else it charms them."
"How vain, as well as wicked, are all attempts to kill the gospel. Those who attempt
the crime, in any fashion, will be for ever still beginning, and never coming near their
end. They will be disappointed in all cases, whether they would slay it with
persecution, smother it with worldliness, crush it with error, starve it with neglect,
poison it with misrepresentation, or drown it with infidelity. While God liveth his
Word shall live." //-Charles Spurgeon
God gives each one of us gift(s) of the Spirit - that is, of His Spirit. We all have different gifts to encourage one another or unbelievers to Him. The focus and edification is always Jesus Christ, because the purpose of the gifts are to Glorify Him. He gets our eyes of "self" and unto Him, loving Him, and others, loving others. Gifts can be different, depending upon His will also.
Ephesians 4
11 And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers;
12 For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ:
13 Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:
So my answer, yes and no and still learning...lol. He sometimes gives us the opportunity, but it may either be received or rejected. Only God knows someones heart and intent. It may be we just share His Word "now", but that Word is planted so to speak... and the Lord will bring others into people's lives to keep on planting, etc.
HE, overall, gives the increase, though, He alone is God.
1 Corinthians 3:6
I have planted, Apollos watered; but God gave the increase.
I could probably say more, and still learning, but I'll leave it at that for now. Just some things that came across when you brought it up.
helps 
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