1 Corinthians 15:52 (HCSB) - in a moment, in the blink of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptible, and we will be changed. Romans 10:13 (KJV) - For whosoever shall call upon the name of the Lord shall be saved.
a person must read the verses before this verse to fully understand Phillippians 4:13. why? because its implying that if you are happy in any circumstance you will be able to do everything through Christ who gives you strength.