1. Learn music theory. You need to understand major and minor scales, and maybe even modes. You need to understand major and minor chords. You need to know basic song structures like AABA. (Here's a secret: over 80 percent of pop hits are structured some form of AABA).
2. Learn to use these conventions. Challenge yourself to write a really good AABA song. Then learn the conventional structures used for your style of music - namely, Christian music. For example, write a really good congregational verse-and-chorus song.
3. Learn the conventions of your genre. Christian music definitely has some standards, especially when it comes to church meant for live worship. Things like easy to remember words, simple melody lines, call-and-answer, etc. Learn what works for your church. If you're going the artist route, it's a little more open, meaning you can look at pop artists - Christian and secular - for ideas and inspiration.
4. Learn to break the rules. Good songwriters know the rules of songwriting - and then when to break them for the right reasons. Not every chorus has to be 8 bars, for example. Know the rules so well you know when it's OK to go your own way with it.
According to the songwriters I admire there is no write or wrong way of writing a song. You might write a simple song with easiest of words, sung and composed in the most simplest of scales and people would still like it. Its just what comes out from the heart and is felt by another heart feels good.
Regarding composition, there are a few scales which are considered happy scales and some are so called sad scales. You can try to go conventional or you try doing the exact opposite of it. You would also have to keep in mind which scale is the singer actually comfortable in doing justice to the lyrics and vibe of the song.
What i personally feel is when you make or write a song from your heart it would touch hearts. There is no write or wrong way to write a song.
Sometimes people have feeling that they don't know how to put into words and a song can help them communicate.
Finding a new way to say how you feel in words also makes a song successful. For example; instead of just saying I love you in a song, you find a more creative way to say it, like, my heart skips a beat or if I only had one cookie I'd give it to you haha.
Use your own experiences to create a song, write down what happened, how it made you feel, what it made you think of, etc.
If you haven't had a lot of life experiences, then talk to people who have and ask them those questions.
Kimberly recommends the following next steps:
Writing is a muscle. Whether you're writing musically or lyrically, you must work it out! Write all the time: write music, write lyrics, write snippets, write inside and outside of a genre. The best thing you can do is to find your voice, and the only way to do that is to write a lot and make mistakes!
Consider a child learning to speak: at first, the child can vocalize, but not form words. Perhaps the child can use some hand gestures to help emphasize what s/he means. As the child grows, s/he can then use words and even full sentences! But this does not come without a lot of mistakes and frustration (on both the communicator's and the communicatee's end).
Write with goals in mind: "I want to get better at lyrics" or "I want to write better guitar riffs" or "I want to write from a person/people's perspective."
KJ recommends the following next steps: