So, Colossians 1:15-16 helps us come to know our Creator and our Savior - Jesus. Knowing Jesus is critical to your growth as one of His followers. Coming to see Him as God in flesh and giving Him His rightful position in Creation is a great step towards giving Him the rightful position within your heart.
Not all come to know Him this way. Many deny this claim of deity from Jesus and many others refuse to place Him on the platform of The Father in acts like the Creation. In Acts 17, Paul teaches a stubborn audience about The God they do not know:
22 So Paul, standing before the council, addressed them as follows: "Men of Athens, I notice that you are very religious in every way, 23 for as I was walking along I saw your many shrines. And one of your altars had this inscription on it: 'To an Unknown God.' This God, whom you worship without knowing, is the one I'm telling you about. 24 "He is the God who made the world and everything in it. Since he is Lord of heaven and earth, he doesn't live in man-made temples, 25 and human hands can't serve his needs--for he has no needs. He himself gives life and breath to everything, and he satisfies every need. 26 From one man he created all the nations throughout the whole earth. He decided beforehand when they should rise and fall, and he determined their boundaries.
When Paul saw a people struggling to identify God He spoke of the Creation. When Paul spoke of the Creation he spoke of Jesus (Colossians 1:15-16).
Is God 'unknown' to you? Whether by confusion or by choice, the result is the same. You cannot know God on your terms when He has revealed Himself on His. Therefore, to truly Know Him you must seek Him out in the way He has chosen to reveal Himself. Prior to the Life of Christ, you might have had to discover Him primarily through His creation (more on that tomorrow) but now He has given you the ultimate revelation through His life, death & resurrection of Jesus the Messiah. Is He known to you?