Deuteronomy 29:9
Carefully follow the terms of this covenant, so that you may prosper in everything you do.
There are many Christians who fail in every venture or trade that they undertake. They hop from one job to another, one business to another, but prosperity evades them and failure is what they encounter. This verse here, exhorts every Christian to carefully follow the terms of the covenant. The Israelites had the Mosaic laws to follow and obey. For us God has put the terms of His covenant with us in His word – The Bible. The books from Matthew to Revelation, all lay down the guiding principles for Christian living. And every Christian has to carefully follow the terms of this covenant.
Many Christians fail here. They have accepted Jesus as Savior but they hardly have any lasting relationship with Him. The Bible says, “If anyone is in Christ, he is a new creation, the old things have passed away.†But for many Christians old things rarely pass away. Their relationship with the world hardly changes. Lust of the flesh, lust of the eyes and the pride of life destroy their relationship with Jesus. They hardly come to terms with the terms of His covenant and that is where they fail.
God here (in this verse) is exhorting the Israelites to carefully follow the terms of His covenant and thereby prosper in everything they do. We as believers are also expected to obey and live according to the Word of God and thereby prosper in everything we do.