You've described two different kinds of fear in the same context - motivation to work by fear of losing God's salvation and motivation to work out of fear of who God is (more a holy awe, reverence, respect and honor - but from one who is but dust and of One who is far beyond anything we can even fathom). To fear losing Him and fear "hurting"(offending) Him are two different things. One is selfish (I might lose my salvation) but the other is truly Godly love (with the best interests of the other being foremost at heart). Perfect love casts out that selfish fear (which hath torment).
And one who thinks of God as waiting on our performance before deciding if we will be saved or not (you said it was a partnership and the topic is eternal security...) reminds me of the stewards to whom God gave talents - specifically the last one. All three of these stewards worked - I agree works are important - but the one was focused on his own performance out of fear of offending the Master. They were all given talents and all were giving them back to Him. Their thought was pleasing their Master. But the third had this fear of his Master :
Then he which had received the one talent came and said, Lord, I knew thee that thou art an hard man, reaping where thou hast not sown, and gathering where thou hast not strawed:
And I was afraid, and went and hid thy talent in the earth: lo, there thou hast that is thine.
Matthew 25:24-25
The fear of offending (failing) his Master provoked him to simply protect what he had instead of thinking of what he could give to his Master. The other two might well have realized poor performance would have cost them, but it isn't final performance that the Master judged upon. In 25:15 he gave out talents according to ability - so the third steward clearly didn't have the same capability as the other two. The other two didn't return the same amount (and the Master didn't expect that) but they were commended. What the third was judged on was based on his understanding of the Master. He didn't even act consistently with that understanding. Why? Because of that fear of failing his "hard" Master. We are called to bear fruit, but if we are always in peril of losing what we have gained because of what we do, we are missing the judgement of God - which is of the heart. If He has changed the heart, it is changed.
My sheep hear my voice, and I know them, and they follow me:
And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand.
My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand.
John 10:27-29
I was trying to have dialogue with you, cause you the only person that has manners and respectful. Holiness and being blameless before God is what pleases Him nothing else. You have to be righteous. For He is righteous. 1 John 3:Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.
7 Little children, let no man deceive you: he that doeth righteousness is righteous, even as he is righteous.' got be to holy and blameless. Glory to God. We can go on all day but at the end of the day Holiness without such no man shall see the Kingdom of God.!