1st Corinthians 12:4-7
Now there are diversities of gifts, but the same Spirit. And there are differences of administrations, but the same Lord.
And there are diversities of operations, but it is the same God which worketh all in all. But the manifestation of the Spirit is given to every man to profit withal.
Think about the world we live in, there are over 200 countries, over 6 thousand different languages and tongues and God so strategically placed you wherever you are. He factored in all possible outcomes for your life before you were even a thought. He knew just what race, ethnicity, language, and the socio-economic background to put you in, all so you could be put on a path that would eventually lead back to him. Fast-forward to when you got saved. You are still in the same body, have the same family, and the same memories, although there is a difference. The difference is now Jesus Christ is living inside you. So why did God not just erase our memories? Why didn't we get a new body which reflects the new divine transformation?
What we tend to miss when we talk about personality is the fact that God too has a personality. God almighty creator of heaven of earth, desired to express himself as God through your Vessel