One of the objections I often receive is, "Jesus never spoke on homosexuality" but that's not completely true. Jesus defined marriage as one man and one woman using Adam and Eve as the standard of what God desires (see Matthew 19:4-5 and Mark 10:6-8). Jesus went on to define sex outside of marriage between a man and a woman as pornea or adultery condemned by both the moral code of the Old Testament and the New (see Exodus 20:14; Hebrews 13:4, etc.).
Thankfully God forgives those who repent (or turn away from sin) (see Acts 3:19; 2 Cor. 7:9-10, etc.). But those who do not repent will not be forgiven (see Romans 2:5-8; Hebrews 10:26, etc.). The aggregate of these verses are clear--all sex outside of marriage defined by God is sin and will not be forgiven unless that person repents and asks God for forgiveness.
I know this is not a popular view and I can only imagine the messages I will get on Twitter but, as a Christian, I do not have the luxury of calling good what God calls evil regardless of how the culture at large feels about it. But let me be clear, despite the current zeitgeist in which disagreeing with someone's lifestyle is "hate," (a bafflingly unreasonable stance), a Christian such as myself is called to love everyone even if we disapprove of their beliefs, actions or whatever. The irony that so many today "hate" evangelical Christians for disagreeing with them even though those believers are called to love everyone is seemingly lost on the culture especially internet trolls.
I know those who find this objectionable refuse to believe this assertion because they have redefined love as approval and affirmation. Yet, the latter is not an essential component of the former. If a parent's child turns to drugs, theft, lying or whatnot, the parent will still love the child but strongly disapprove of their lifestyle. Hopefully that makes sense, now if you'll excuse me, I'll go put on my flack jacket for the sharp messages and name calling I'm sure to field on social media.
For more, I recommend the book Is God Anti-Gay by Sam Allberry, a celibate Christian leader who has struggled with same-sex attraction. That's all for now, God bless.