Personal Revelation: Where is it coming from?

First and foremost I would like to apologize for answering this particular question so late. I know that the individual who asked this did so about 2 1/2 weeks ago.  In the end though, I guess that I will just stand by the procrastinators classic phrase in saying, "better late then never!"

In contemplating the question: " how do we know if revelation is from the Spirit of the Lord, or another source?" I have had a few scriptures come to my mind. First I would like to share the "Fruits of the Spirit" as described in the New Testament of the Holy Bible.

"22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,

23 Meekness, temperance: against such there is no law." - (Galatians 5:22-23)

So what can we take away from the scripture that is above? Well if we are questioning where the revelation is coming from, all we have to do is simply think about how we feel when we received it. You see there is this thing about God. God is good. He would not have the Holy Ghost tell us to do something that is bad in our lives. If we doubt whether or not we are receiving revelation from the Holy Ghost, all we have to ask ourselves is, "does this prompting make me want to do something that is good, and will help me grow closer to my Father in Heaven?" Just to give evidence of that point, let's look at another scripture. 

"11 Beloved, follow not that which is evil, but that which is good. He that doeth good is of God: but he that doeth evil hath not seen God." - (3 John 1:11)

So really the best way to answer this question is to make it personal to each and every one of us. The Lord talks to each of us in our own unique way through the Spirit. Just as was recorded in The Book of Mormon by the Prophet Nephi;
"3...For the Lord God giveth light unto the understanding; for he speaketh unto men according to their language, unto their understanding..." - (2 Nephi 31:3)

So we read even today in modern revelation given to the World through the Prophet Joseph Smith;
 "1 ...even so surely shall you receive a knowledge of whatsoever things you shall ask in faith, with an honest heart, believing that you shall receive a knowledge...

2 Yea, behold, I will tell you in your mind and in your heart, by the Holy Ghost, which shall come upon you and which shall dwell in your heart." - ( Doctrine and Covenants 8:1-2)

"12 And now, verily, verily, I say unto thee, put your trust in that Spirit which leadeth to do good—yea, to do justly, to walk humbly, to judge righteously; and this is my Spirit." - (Doctrine and Covenants 11:12)

So whenever in doubt about the source of revelation, just kneel in prayer to your Heavenly Father and listen to your heart and your mind. If you have enough faith, you will always receive an answer. If you listen carefully, you will have the Heavens opened unto you.