It shouldn’t come as a shock to you that having high quality content on your website is important for your SEO. Google loves website’s that produce solid amounts of high quality content. It is one of their important ranking factors.
So if you want a good ranking on Google (like everyone does!) you will need to be creating new content on a regular basis that is quality. I know this is easier said than done! But because Google values high quality content so much, it means you need to value content as well.