There is a truth we need to grasp in this chapter. We need to "get" that there were no conditions we needed to meet before God loved us...HE MET THE CONDITIONS. He sent His Son to bear the wrath that we deserved and to clothe us in His righteousness. It is IN CHRIST that we are made new creations (2 Cor. 5:17). It was before the foundation of the world that God chose us, predestined us to adoption as sons by Jesus Christ to Himself and made us accepted in the Beloved (Eph 1:3-6). If we are in Christ, we HAVE His love because He has chosen to GIVE it...we can rest in faith right there, and enjoy the love of our Father. Let it sink deep into our bones!
He's given us right standing with Him, but the problem is we know we still sin against Him and feel our "wrongness." So let's talk about that for a minute.
I have three children...I love them all very much and they are all secure in that love though they don't always "feel" secure. Occasionally when they do wrong, instead of coming to me, telling me about it and asking me to forgive them (which I stand ready to do), they may start writing me little love notes and excessively offering to help with the jobs around the house, all the while acting insecurely. I've been guilty of the same sort of thing in relationship with God: times when I have pridefully attempted to sweep my sins under the proverbial rug (ignore them, just let "enough time pass", or justify myself in some way, as if that solves anything with a holy, omniscient God) and just work harder to earn His favor. And I bet I'm not alone. So when I notice that one of my kids is insecure (or I note it in myself), I've learned to turn to a verse like Proverbs 28:13 that reminds us "He who covers his sins will not prosper, but whoever confesses and forsakes them will have mercy."