Unfathomable His ways. Rom:11:33 His ways are higher than your ways. With the limited knowledge and finite wisdom that you have, you take decisions. But letting it into the hands of the infinite God of unsearchable wisdom and unlimited knowledge is easier. For He loves you. His plans are to prosper you and not to harm you. His plans are to bring you hope and future. Image credit: https://www.scientificamerican.com/article/see-how-crushing-pressures-increase-in-the-oceans-depths/
Rom:11:17 You being a wild olive, were grafted in among them and became part taker with them of the rich root of the olive tree. The purpose of grafting is so that, you would yield fruit from a type - for better results. A combination of good from both the branch and from the tree. But this grafting in the Bible is not of that purpose. That wild olive was useless. It is grafted so that the wild olive will yield fruit. It is all benefit for the wild olive. It was not considered worthy. But out of kindness, it is grafted to the original tree. But then there are branches that are severed, Israel who has rejected the gospel. It is because they were severed, because of their unbelief that we have been privileged to be grafted to Him. If they were severed, how much more we would be if we lack faith. And Paul goes on to say, they who have been severed can be grafted back, if they believe. Sum and substance is that - it is by Grace that you have been saved by faith. Nothing for you...