'Maintaining' in the Bible

"Remember the Sabbath day, maintaining its holiness.

maintaining faithful love to a thousand generations, forgiving wrongdoing, rebellion, and sin. But He will not leave the guilty unpunished, bringing the consequences of the fathers’ wrongdoing on the children and grandchildren to the third and fourth generation.

""Observe the Sabbath day, maintaining its holiness, just as the LORD your God commanded.

[So] know that Yahweh your God, he [is] God, the trustworthy God, maintaining his covenant and his loyal love with those who love him and with those who keep his commandments to a thousand generations,

But you must return to your God, by maintaining love and justice, and by waiting for your God to return to you.