"Let go and let God” is a phrase that popped up years ago and still used by some today. Actually, the Bible never tells us to "let go and let God.” In fact, there are so many commandments about what we are to do that it completely contradicts the way most people interpret "let go and let God." The popular idea of “letting go" is to adopt a sort of spiritual hand wherein we do nothing, say nothing, feel nothing, and simply live, allowing circumstances to roll over us however they may.
The Christian life, however, is a spiritual battle which the Bible exhorts us to prepare for and wage diligently. “Fight the good fight of faith" (1 Timothy 6:12); “Endure hardship ... like a good soldier of Christ Jesus” (2 Timothy 2:3); “Put on the full armor of God so that you can take your stand against the devil's schemes” (Ephesians 6:11). Letting go, in the sense of sitting back and watching events unfold however they may, is not biblical.
Having said that, though, we have to understand that the things we are to do, we do by the power of God and not on our own steam. The truth is that working at "letting go” is just as much as an effort-filled work as anything else we try to do for God and not nearly as easy to do as some things. So let's look at the Christian life and see exactly what we are to do.
But what are we willing to give up?
To begin with, Jesus was clear that, apart from Him, we can do nothing (John 15:5). The truth being imparted here is that we can do nothing of eternal value apart from Christ and the power of the Holy Spirit. We can do lots of "stuff" and assume we're doing it for God, but if we are doing it on our own power, we get the credit, and there is little or no eternal value to it. The picture of the vine and the branches in John 15 is very appropriate. Christ is the vine; we are the branches. Everything branches need to bring forth fruit comes from the vine-water, nutrients, the genetic material of life itself-while nothing is provided by the branches. The branches are simply something to hang the fruit on. The same is true of the Christian life. We are a conduit through which Christ displays His (not our) fruit.
So what has all this to do with "letting go"? Many people believe that, if we are truly in a state of “letting go," we will be able to cease from striving and struggling. But Jesus said that we are to "strive” to enter the narrow gate to eternal life (Luke 13:24), not to sit by and wait to die so we can gain heaven. By striving, He means that we should be diligent, active, and earnest and that we should make every effort to overcome our sinful tendencies, in order to prove that we are truly His children. We are also to strive to do the work of the kingdom, whatever form that takes in our lives. This is the reason He gives us spiritual gifts, so that we can edify one another and bring glory to Him.
Furthermore, when we struggle, we assume the problem is that we are not letting go and letting God. The reality is that we struggle for a variety of reasons. One is that we have a weak faith. We just don't have enough confidence in God to rest in the reality of His nature and have the peace that comes with a strong faith in Him. For instance, when trials come or we experience illness, financial ruin, or the death of a loved one, do we really believe that "God works all things together for good for those who love God and are called according to His purpose" (Romans 8:28)? If we don't know God intimately, it's very hard to trust that He is working all things together for good. But if we do know Him, if we have spent time digging into His Word and meditating on His works and His nature, we have faith in His plan and purposes, His love for us, His sovereign control over all circumstances in life, and we rest in the "peace that passes all understanding" (Philippians 4:7). But if we don't know Him, we will always struggle against life's hard circumstances.
On the other hand, there is a positive reason for struggling-it is good for us and is God's plan to grow and mature us into the people He wants us to be. Struggles are just one of the ways He strengthens us for the hard things life throws at us. Each one enables us to be stronger and better able to handle the next one. Trials are designed to show us and others that our faith is real. “Your faith will be like gold that has been tested in a fire. And these trials will prove that your faith is worth much more than gold that can be destroyed. They will show that you will be given praise and honor and glory when Jesus Christ returns” (1 Peter 1:7). In Christ, we can face the trials of life with grace and good humor and complete faith that whatever God has for us is ok. This comes from years of walking with Him, trial upon trial, struggle upon struggle.