"Only be strong and very courageous, being careful to do according to all the law that Moses my servant commanded you. Do not turn from it to the right hand or to the left, that you may have good success wherever you go." ~ Joshua 1:7 (ESV)
"Brothers, I do not consider that I have made it my own. But one thing I do: forgetting what lies behind and straining forward to what lies ahead, I press on toward the goal for the prize of the upward call of God in Christ Jesus." ~ Philippians 3:13-14 (ESV)
Once God calls us and we have a clear vision of where He is wanting to take us, we must stay focused on the path before us. There will always be obstacles but God does a pretty good job of clearing the way for us. He's the same God that parted the Red Sea! But I'm afraid our largest obstacles are not always directly in front of us. Sometimes the obstacles that we struggle with most might be those behind us or to the left and right of us. We must learn to stay focused on where God is taking us.
The past ("what lies behind") can cripple us regardless if it was a good past or a difficult past. We're sure to stumble and lose time if we are continually looking over our shoulder and spending time focused on where we've come from. God knows where we came from, where we are, and most importantly...where we're going. Let go of the past and press ahead!
The obstacles to our sides ("do not turn...to the right hand or to the left") may also be negative or positive. There are many left turns available throughout the course of our lives. These turns are just plain old wrong. We are often shocked to hear of people making these types of turns in their lives. Many have made left turns that have led them to moral failures. Some left turns have provided financial gains but the spiritual costs were enormous.
There are also right turns along the path. These right turns could represent great opportunities. As we serve the Lord and follow His leadership in our lives there will be plenty of great opportunities that open up along the way. These right turns may have nothing wrong with them other than the fact they take us off the course that God has planned for us. If these right turns take us off course and keep us from following the path that God has set before us, then they too are wrong turns.
Staying focused on God is truly the key to having "good success wherever you go"!