1 John 4: 19 --We love Him because He first loved us.
(following taken from DAVID GUZIK COMMENTARY ON THE BIBLE, Studylight.org)
…This verse not only declares our love for Jesus, it also tells us when He loved us. Some people imagine that Jesus loved us because He knew we would love Him and come to faith in Him. But He loved us before that, and even before the worlds were created, when our only existence was in the mind and heart of God, Jesus loved us.
"Jesus loved you when you lived carelessly, when you neglected his Word, when the knee was unbent in prayer. Ah! He loved some of you when you were in the dancing saloon, when you were in the playhouse, ay, even when you were in the brothel. He loved you when you were at hell's gate, and drank damnation at every draught. He loved you when you could not have been worse or further from him than you were. Marvellous, O Christ, is thy strange love!" (Spurgeon)…..