Think about it. The first "secure" is a verb. The second is a noun. In other words, if we don't secure (tie, connect, bind) ourselves to Jesus, the only sure Foundation, when the inevitable storms of life come, we will find ourselves insecure and shaken.
I've heard the Bible passages about the wise man building his house on the rock and the foolish man building his house on the sand. When the storm comes (notice Jesus said WHEN, not "if"), only the wise man's house remains standing. The foolish man's house is wiped away.
But I'd never before pondered my personal insecurities as having to do with to whom or to what I've secured myself. What have I been depending on? Trusting in? Leaning and relying on? (It's no wonder I've been a bit shaky at times! ) What we secure ourselves to determines our how secure we will be! It's interesting and important thought...
Another important thought...Do you know what Jesus said would be the difference between our house (our LIFE) standing or falling? Forget the parable about the house and the rock and the sand. That was just to illustrate His point. Jesus said the difference between what would make us wise and what would make us foolish is this: whether or not we obey His Words when we hear them.
The wise man hears and puts into practice those things he's heard. The foolish man just hears. Even if I've made Jesus my Savior, my security is uncertain until I make Him my Lord. It's only when I hear and obey that I've wisely built my house upon the rock, or secured my life to the One who will never let me down and never let me be shaken---storms, insecurities, and all!