So God's spirit makes a great effort to lead souls to Jesus.
but he also said way back in Genesis 6:3 that his spirit would not always strive with man. So when he has tried over and over again and man refuses to heed the call, then God will do as he said in Romans 1:28 and he will turn them over to a reprobate mind. Reprobate means: A person rejected by God and beyond hope of salvation. Friend, you are not a caged migrating bird that can't follow the calling upon your soul. You are a free spirit that can answer, here am I Lord when he speaks to your heart. If you sit back and don't listen when he calls your name, then one day, he will stop calling. Then you will be like the caged migrating bird, you will not feel the tug on your heart to run to God. God will still love you and you can still run to him, but your season of migration may come to an end. Isaiah 55:6 (KJV)
Seek ye the Lord while he may be found, call ye upon him while he is near: