Trust in God can’t be built in the heart where love for God is not central. When we know that He is a God who loves us without reservation, we know that He is trustworthy. We know that we can trust a God like that. It is hard to have faith and trust in a God whom you do not feel is for you; whom you do not feel is working and acting in your best interest. Paul warned those who were seeking to be accepted by God on the basis of the law. “For in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love (Galatians 5:6 ESV). We are set-right (justified) by a faith that works by love; it works by His love for us and our love for Him.
What then shall we say to these things? If God is for us, who is against us? He who did not spare His own Son, but delivered Him over for us all, how will He not also with Him freely give us all things? … For I am convinced that neither death, nor life, nor angels, nor principalities, nor things present, nor things to come, nor powers, nor height, nor depth, nor any other created thing, will be able to separate us from the love of God, which is in Christ Jesus our Lord. (Romans 8:31-32, 38-39 NASB).