Hebrews 7:21-22, 24-25 NRSV "The Lord has sworn and will not change His mind,‘You are a priest forever' " -- accordingly Jesus has also become the guarantee of a better covenant. . . . He holds His priesthood permanently, because He continues forever. Consequently He is able for all time to save those who approach God through him, since He always lives to make intercession for them.
Can Jesus save... that person, that situation, that problem, that illness, that sin? Can Jesus save? I think the answer ("yes") is something I believe intellectually, but not always something I believe in faith. I do have the choice of trusting (having faith) or observing (looking at what I believe are the facts) and often I choose the "facts" over faith.
I like optical illusions. But I have to admit, sometimes I don't get them. I look and look and just can't see what it is I'm supposed to see. It's the same with jokes. Often I listen to them and then... nothing. I just didn't hear the humor (while my husband is bent over laughing). Both are, in a sense, illusions for a reason. They take "fact" and twist it for a purpose (to amuse). So, I think, facts are not static. Facts are not, then, the same as truth because facts can obviously be manipulated.
You may be caught in an endless cycle of addiction, whether it be sex, drugs, alcohol, porn, relationships, food, whatever. Your heart is in the right place and you desperately want freedom from the bondage and slavery which is addiction. But the miracle has not happened. No matter how hard you try or how often or earnestly you call out to God the results are the same.
Do not loose heart! I too was caught in that very same vicious cycle. Even though I believed in God with all my heart and soul I could not find release from the cravings of addiction. No matter what I did or what I tried I would get sucked straight back into behaviors that I dreaded. It was a nightmare. There seemed no end to it. I felt weak, unworthy of God, useless, and ashamed.