I would say that it is a heart that is not in oppisition to the ways of the Most High, and that does not seek the ways outside of His path.
Psalms 24:3-6, “Who does go up into the mountain of יהוה? And who does stand in His set-apart place? He who has innocent hands and a clean heart, Who did not bring his life to naught, And did not swear deceivingly. He receives a blessing from יהוה, And righteousness from the Strength of his salvation. This is the generation of those who seek Him; Ya‛aqoḇ, who seek Your face. Selah.”
Psalm 51:10, “Create in me a pure heart, O God, and renew a steadfast spirit within me.”
Ezekiel 11:19-21, “And I shall give them one heart, and put a new spirit within you. And I shall take the stony heart out of their flesh, and give them a heart of flesh, so that they walk in My laws, and guard My right-rulings, and shall do them. And they shall be My people and I shall be their Strength. But to those whose hearts walk after the heart of their disgusting matters and their abominations, I shall recompense their deeds on their own heads,” declares the Master יהוה.”
I want to point out that the words that are in italics* are ADDED, thus changing the meaning of the passage:
Ephesians 2:15-16, (NKJV), "having abolished in His flesh the enmity,*that is, the law of commandments contained in ordinances, so as to create in Himself one new man from the two, thus making peace, and that He might reconcile them both to God in one body through the cross, thereby putting to death the enmity. "
Not only does the next verse tell us what was abolished, but when you remove the ADDED words the meaning changes.
Ephesians 2:15-16, "Abolishing the enmity Law, the Commandments, and the Ordinances, through His own flesh, in order to create in Himself one new man from the two; making peace, That would reconcile both in one body to YHWH through the sacrifice--having killed the enmity through Himself."
Strong's Concordance, “enmity” is word #G2189 echthra: enmity, hostility, Original Word: ἔχθρα, ας, ἡ, Part of Speech: Noun, Feminine, Transliteration: echthra, Phonetic Spelling: (ekh'-thrah), Short Definition: enmity, hostility, Definition: enmity, hostility, alienation.
Thayer's (New Testament Greek-English Lexicon) Feminine of G2190; hostility; by implication a reason for opposition:—enmity, hatred.
The opposition to YHWH's Law abolished, not the Law it's self.
So if we were to remove the added words in italics , we would have;
Ephesians 2:15-16, "Abolishing the enmity (the opposition to the) Law, the Commandments, and the Ordinances, through His own flesh, in order to create in Himself one new man from the two; making peace, That would reconcile both in one body to YHWH through the sacrifice--having killed the enmity through Himself."
Galatians 5:22-25, “But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, righteousness, Faith, Meekness, temperance, such things are not against any Law. And those who are the Messiah's have sacrificed the flesh, with its passions and lusts. If we live in the Spirit, let us also walk in the Spirit.”