God’s love is like Himself- it is equal and constant. And even the things which appear to show that God has changed His mind about us proceed from His love for us. We are so different- our love changes, yet God’s love is always the same.
“Objection. But you will say, ‘This comes nigh to that blasphemy, that God loves his people in their sinning as well as in their strictest obedience; and, if so, who will care to serve Him more, or to walk with Him unto well-pleasing?’
Answer. There are few truths of Christ, which, from some or other, have not received like entertainment with this. Terms and appellations are at the will of every imposer; things are not at all varied by them. The love of God in itself is the eternal purpose and act of His will. This is no more changeable than God Himself: if it were, no flesh could be saved; but it changeth not, and we are not consumed. What then? Loves He His people in their sinning? Yes; His people-not their sinning. Alters He not His love towards them? Not the purpose of His will, but the dispensations of His grace. He rebukes them, He chastens them, He hides His face from them, He smites them, He fills them with a sense of His indignation; but woe, woe would it be to us, should He change in His love, or take away His kindness from us! Those very things which seem to be demonstrations of the change of His affections towards His, do as clearly proceed from love as those which seem to be the most genuine issues thereof. ‘But will not this encourage sin?’ He never tasted of the love of God that can seriously make this objection.” -- John Owen (Not sure if regular font is Owen... but i saw the italicized stuff at google books, straight from John Owen's COMMUNION WITH GOD.... get the forthcoming reprint edited by Kelly Capic & Justin Taylor)