Free grace, lol ... you mean irresistible grace (which I do agree with except that faith precedes it in scripture) in order to support limited atonement because of total depravity, however it is defined however depending on the writer and web site, but ultimately means God grants grace to some and not others when He could have granted to all.
Was there supposed to be a point to this last clause?
Let's see what John Calvin wrote since he did systematize this dogma...
...our nature is not only destitute of all good, but is so fertile in all evils that it cannot remain inactive. Those who have called it concupiscence have used an expression not improper, if it were only added, which is far from being conceded by most persons, that everything in man, the understanding and will, the soul and body, is polluted and engrossed by this concupiscence; or, to express it more briefly, that man is of himself nothing else but concupiscence. (Institutes, Vol. I, Bk. II, Chap. 1, Para. 8; Allen translation.)
Looks biblically sound to me! The bible does teach that the thoughts and intentions of man's heart are evil continuously
(Gen 6:5), that the intent of man's heart is only evil from his youth
(Gen 8:21), that there is absolutely no spiritual soundness in man
(Isa 1:5-6), that God doesn't even put his trust in his own holy angels let alone man who is detestable, corrupt and drinks iniquity like water
(Job 15:14-16), and that sinful man in the eyes of a thrice Holy God is nothing more than a maggot, a worm
(Job 25:4-6), that no man does good (
Ps 14:3), that man is brought forth in iniquity and in sin his mother conceived him
(Ps 51:5), that the wicked are estranged from the womb and those who speak lies go astray from birth
(Ps 58:3-4), that indeed all men are liars
(Ps 116:11), that man searches out many evil schemes
(Eccl 7:29), that men deal very treacherously and are rebels from birth
(Isa 48:8), that all men's righteousness are as a woman's menstrual cloth
(Isa 64:6), that's it's impossible for man to do good when they are accustomed to doing evil
(Jer 13:23), that man's heart is so desperately wicked and deceitful above all else that no one can even understand this truth
(Jer 17:9), that there is no one good except God alone
(Mk 10:18), that there's no good thing in man's sinful nature
(Rom 7:18), that men love the darkness and hate the light
(Jn 3:19), that man himself is darkness
(Eph 5:8), that the [sons of] darkness
(1Thes 5:5) do not understand the light
(Jn 1:5), that men hate God and his Son
(Ps 2:1-3), etc., etc..
So tell me, please, what's not to like in the quote?