Watchtower September 15th 1971, “How can you be ‘Perfect as your Heavenly Father is perfect?’” page 566?
”Despite their [ancient worthies] errors and weakness, the sum total of what they did added up to what God required of them at that time and under the existing circumstances. Jehovah God was pleased with their worship. So, then, if he did not find fault with their sincere effort and overall course, who could rightfully do so? Compare what the apostle Paul says about anointed Christins at Rom 8:31-34.”
https://faithleaks.org/wiki/documents/b/b9/W_E_19710915.pdf
I don’t know about the online search. I used the old 1930-1985 index.