For whom He foreknew, He also predestined to be conformed to the image of His Son, that He might be the firstborn among many brethren. - Romans 8:29
God does not change us from the outside in but quite the opposite - from then inside out. The Apostle Paul encourages us to abandon conformity to the world and
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God. - Romans 12:2
Philip said to Him, “Lord, show us the Father, and it is sufficient for us.” Jesus said to him, “Have I been with you so long, and yet you have not known Me, Philip? He who has seen Me has seen the Father; so how can you say, ‘Show us the Father’? Do you not believe that I am in the Father, and the Father in Me? The words that I speak to you I do not speak on My own authority; but the Father who dwells in Me does the works. - John 14:8-10
I do not pray for these alone, but also for those who will believe in Me through their word; that they all may be one, as You, Father, are in Me, and I in You; that they also may be one in Us, that the world may believe that You sent Me. And the glory which You gave Me I have given them, that they may be one just as We are one: I in them, and You in Me; that they may be made perfect in one, and that the world may know that You have sent Me, and have loved them as You have loved Me. - John 17:20-23
I worked in my step dad’s family business with his dad, mom and 2 brothers while I was in high school. People always commented or assumed I was one of the brothers – but I didn't look like them. They were English/Swedish – I was Scotch/Irish/German – they were short – I was tall. I was full of freckles and they were not. But it was not my looks that made them think that – it was my behavior.