There is no doubt that human beings are notorious, and they will fail you every time that you put your trust in them.
Human beings will fail you all the times, that is a given and a by-product of the way that the Devil uses humanity to inflict pain on each other. Life is full of trouble, even for those who belong to God through faith in Christ. God does not promise life to be without problems, sorrow, and, yes, failure, just because we believe in Him.
However, the Bible tells us in 2 Peter 3:17 You, therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your steadfastness. When you put your trust and faith in human beings, you are, destined for failure in every aspect of your life.
Knowing that betrayal and failure is something that the Devil is capable of putting in our life. We must take heed as the Bible warns in Hebrews 3:12 Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God. If there’s evil in our hearts, we allow Satan to enter and that where failure will start.
There is one constant that we have in our lives that will never fail or forsake us. God promises us as stated in the book of Matthew 6:30 Wherefore, if God so clothes the grass of the field, which today is, and tomorrow is cast into the oven, shall he not much more clothe you, O you of little faith?