Neofiti Genesis 22:14
And Abraham gave thanks and prayed there, in that place, and said, I pray through the mercies that are before Thee, O Lord, before whom it is manifest that it was not in the depth of my heart to turn away from doing Thy decree with joy, that when the children of Izhak my son shall offer in the hour of affliction, this may be a memorial for them; and Thou mayest hear them and deliver them, and that all generations to come may say, In this mountain Abraham bound Izhak his son, and there the Shekina of the Lord was revealed unto him.
Romans 4:20
18 Against hope Abraham believed in hope with the result that he became the father of many nations according to the pronouncement, “so will your descendants be.” 19 Without being weak in faith, he considered his own body as dead (because he was about one hundred years old) and the deadness of Sarah’s womb. 20 He did not waver in unbelief about the promise of God but was strengthened in faith, giving glory to God. 21 He was fully convinced that what God promised he was also able to do. 22 So indeed it was credited to Abraham as righteousness.
Notes and References
"... Sinners, those of a double mind, are told to purify their hearts (James 4:8), i.e. the hearts of believers should be simple and perfect. There should be undivided attention to the Lord and his affairs (1 Corinthians 7:32-35). We should compare this with what the Palestinian Targum to the Pentateuch has to say on 'the perfect heart.' Israel was commanded to love God 'with all her heart (Deuteronomy 6:5). In the targum full devotion to God is described as a 'perfect heart,' i.e. one that is completely set on God, not divided between him and created things. Palestinian Targum Genesis 22:6, 8 says that Abraham and Isaac 'walked together with a perfect heart'. After the sacrifice of the animal in Isaacs stead Abraham reminds God: 'There was no division in my heart the first time that you said to me to sacrifice my son' (Palestinian Targum Genesis 22:14), i.e. it was whole, perfect, not divided between God and creatures. At Sinai all Israel 'answered with a perfect heart' that they would obey Gods words (Palestinian Targum Exodus 19:8). Finally, in the verse preceding the command to love God with all ones heart, the twelve tribes of Jacob answered together 'with a perfect heart and said: Listen to us, Israel, our father the Lord our God is one' (Palestinian Targum Deuteronomy 6:4) ..."
McNamara, Martin Targum and Testament Revisited Aramaic Paraphrases of the Hebrew Bible: A Light on the New Testament (p. 189) William B. Eerdmans Publishing Company, 2010