Yeah your correct, its just that these men really read the Bible, a lot, and still came up with such fearful preaching of a God of Love.
Is just a mind boggler for me that they would zero in on such a vengeful teaching to "save" souls to a loving God. 
"8 for by grace ye are having been saved, through faith, and this not of you -- of God the gift,
9 not of works, that no one may boast;
10 for of Him we are workmanship, created in Christ Jesus to good works, which God did before prepare, that in them we may walk."- Ephesians 2:8-10
"14 What, then, shall we say? unrighteousness [is] with God? let it not be!
15 for to Moses He saith, `I will do kindness to whom I do kindness, and I will have compassion on whom I have compassion;'
16 so, then -- not of him who is willing, nor of him who is running, but of God who is doing kindness:
17 for the Writing saith to Pharaoh -- `For this very thing I did raise thee up, that I might shew in thee My power, and that My name might be declared in all the land;'
18 so, then, to whom He willeth, He doth kindness, and to whom He willeth, He doth harden.
19 Thou wilt say, then, to me, `Why yet doth He find fault? for His counsel who hath resisted?'
20 nay, but, O man, who art thou that art answering again to God? shall the thing formed say to Him who did form [it], Why me didst thou make thus?
21 hath not the potter authority over the clay, out of the same lump to make the one vessel to honour, and the one to dishonour?"- Romans 9:14-21
The verses in Roman recall that in Exodus God hardened Pharaoh's heart so that he wouldn't listen to Moses and God continually plagued Egypt. Why?
"16 And yet for this I have caused thee to stand, so as to show thee My power, and for the sake of declaring My Name in all the earth"- Exodus 9:16
God can use all situations and all men to advance His Will. Faith in God and the ability to declare Christ Jesus as the Lord and Savior of the world is a gift and comes from the Almighty. Theologians, pastors, preachers, priests, bishops, and popes can read God's Word from cover to cover continually until they die and never understand it unless God gives them "ears to hear and eyes to see."