@Samuel_95 Good question. The short answer is that ‘God’s grace is sufficient for you’ means that God gives us strength to endure hardship when that is what He calls us to do. God is our strength and our strong tower even when we are going through hard times - even and especially in our weakness.
It helps a lot in understanding this verse and what I believe is a similar passage in Philippians 4:13 to consider the context of the passage. If we look at the context we see:
- Paul was suffering from some form of weakness
- Paul pleaded with God to take it away
- God replied by saying that His grace was sufficient
- God’s power is displayed in our weakness
2 Corinthians 12:7-10 - Therefore, in order to keep me from becoming conceited, I was given a thorn in my flesh, a messenger of Satan, to torment me. 8 Three times I pleaded with the Lord to take it away from me. 9 But he said to me, “My grace is sufficient for you, for my power is made perfect in weakness.” Therefore I will boast all the more gladly about my weaknesses, so that Christ’s power may rest on me. 10 That is why, for Christ’s sake, I delight in weaknesses, in insults, in hardships, in persecutions, in difficulties. For when I am weak, then I am strong.
But what does this mean. Let’s look at Philippians 4:13 for a close parallel of the same idea:
- Paul has been both hungry and well fed - both poor and rich
- Even when he is poor or in want, God gives him strength
Philippians 4:12-13 - I know what it is to be in need, and I know what it is to have plenty. I have learned the secret of being content in any and every situation, whether well fed or hungry, whether living in plenty or in want. 13 I can do all this through him who gives me strength.
So, in the simplest terms, God’s grace is sufficient for you means that God will give you strength in your weakness. In fact, God is even saying that when He strengthens us in our weakness His power and glory shine in a unique way.
Does that make sense? Christ grant you wisdom.