To a greater or lesser extent all of us come to junctures in our lives when we have to take on responsibility. That may be in the family, in the workplace, in the community, in the church or wherever. Alas, many of us drift into these situation with little thought or preparation.
Joshua was faced with taking on responsibility as leaders of the nation of Israel. Moses, in Deuteronomy 31:7-13 being aware of this focuses on toe things which will be necessary for Him to have if He is to effectively carry out his responsibility.
The Right Attitude. Joshua is called to Be strong and courageous (v7b). With responsibility come challenges, struggles, opposition and difficulties. If we do not set ourselves to persevere through these then we will soon go the way of the snowflake in a heatwave. We will soon disappear from the scene of our responsibility. We may still have the office thereof, but we will cease to function effectively.
So we need those of courage in all different realms. Elders of churches need to be displayers of this.
The Right Dependence. We are not just to be those of courage in a stoic kind of way. We are those of courage because we have a God who we can depend upon in all the struggles of life. Moses tells Joshua It is the Lord who goes before you. He will be with you; he will not leave you or forsake you. Do not fear or be dismayed (v8). Such a God is worthy of our trust. To survive and prosper in any position of responsibility we need to trust in Him.
The Right Guide. Having commissioned Joshua, Moses in vv9-13 delivers the Word of the Lord to the priests and the elders of Israel. They are to have custody of the law and make sure it is read every seven years. Implicit in this is that all the people including Joshua will have the Word of God to guide them. Jesus must lead according to the Word that all the people know. Otherwise His leadership will be of no account and should be rejected.
So fellow leaders, have courage, depend on the Lord and follow His Word. Then you will be a blessing in your sphere of responsibility.