I do not want you to be unaware, brothers and sisters, that our ancestors were all under the cloud, and all passed through the sea, and all were baptized into Moses in the cloud and in the sea, and all ate the same spiritual food, and all drank the same spiritual drink. For they drank from the spiritual rock that followed them, and the rock was Christ. Nevertheless, God was not pleased with most of them, and they were struck down in the wilderness. Now these things occurred as examples for us, so that we might not desire evil as they did. Do not become idolaters as some of them did; as it is written, “The people sat down to eat and drink, and they rose up to play.” We must not indulge in sexual immorality as some of them did, and twenty-three thousand fell in a single day. We must not put Christ to the test, as some of them did, and were destroyed by serpents. And do not complain as some of them did, and were destroyed by the destroyer. These things happened to them to serve as an example, and they were written down to instruct us, on whom the ends of the ages have come. So if you think you are standing, watch out that you do not fall. No testing has overtaken you that is not common to everyone. God is faithful, and he will not let you be tested beyond your strength, but with the testing he will also provide the way out so that you may be able to endure it. (1 Corinthians 10:1-13, NRSV)
Do not desire evil and give not yourself into temptation.
Even when we think we are standing we could fall over. We are tested by things around us every day. We can endure when we hold fast to what God has given us and to His love. He walks with us through everything and guides our steps. Follow after God and give not into the temptations of the flesh, but hold to the glory that He gives us all.
God is faithful and He will not let us fall when we trust in Him and follow His lead.