Anyway, I wondered if you could point me towards any key bible quotes that can answer that second question? Passages that particularly highlight the way Yahushua brings peace, love, fulfilment and completeness to a person's inner being like nothing else can? And passages that talk about how Yahushua lives in the believer, how it is a two-way relationship, that sort of thing.
I just don't have enough bible knowledge yet so it's taking me quite a long time
I don't have a lot of bible knowledge as far as recalling verses and their locations, but I get a lot done with searches in the Blue Letter Bible.
http://www.blueletterbible.org/I can usually remember a word or two, and if I can remember three it will usually take me straight to the verse. I will add onto this list as things occur to me and resisting can help a lot too, though he has kept a pretty low profile in here lately.
I may be a little nailed down by taxes over the next couple days.
Re Yeshua relationship how about John 14:20 At that day ye shall know that I [am] in my Father, and ye in me, and I in you.
http://www.blueletterbible.org/Bible.cfm?b=Jhn&c=14&t=KJV#20To answer Muhammad's challenge to "call on witnesses" and "produce a sura like it" I like to quote this one.
1 John 4:4 Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world. 5 They are of the world: therefore speak they of the world, and the world heareth them. 6 We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error. 7 Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God. 8 He that loveth not knoweth not God; for God is love. 9 In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him. 10 Herein is love, not that we loved God, but that he loved us, and sent his Son [to be] the propitiation for our sins. 11 Beloved, if God so loved us, we ought also to love one another.
You may want to include more context around these verses.
Jhn 14:23 Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
Jhn 14:17 [Even] the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.
Looks like plenty more in that search of - love -
http://www.blueletterbible.org/search/translationResults.cfm?criteria=love&page=6&t=KJVMat 28:20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, [even] unto the end of the world. Amen.
Jhn 14:16 And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever;
search - with you -
http://www.blueletterbible.org/search/translationResults.cfm?criteria=with+you&page=4&sf=5&t=KJV