I know a man who was helping unload a U-Haul truck of someone who was moving. He was inside the truck, handing out large pieces of furniture for the men to carry into the house. This man’s four-year-old grandson also wanted to help.
The grandfather knew he couldn't give the little boy heavy objects to carry like a dresser. Instead, he handed him little boxes, small appliances, and light objects. He knew the limitations of the four-year-old child, and he wouldn't give him any more than he could handle.
In the same way, our Father in heaven knows our ability and strength, and He’s not going to give us any more than we can handle. First Corinthians 10:13 says, “No temptation (Greek-"test") has overtaken you but such as is common to man; and God is faithful, who will not allow you to be tempted (or "tested”) beyond what you are able to handle.” God knows our limits and He’s not going test us with more than we can bear.
However, sometimes He will let the test take you to your limit. Just ask any athlete who's ever been in the weight room. The only way he can get stronger is if he lifts something heavier than he's lifted before. God knows your limit, and while He may allow you to go the edge so you can experience His power, He will never allow you to go over the edge.