There was no limit to the increment of their (the cowherd men and women's) affection for their sons, who were now Krsna. Every day they found new inspiration for loving their children as much as they loved Krsna - SB 10.13.26

Expressions researched:
"There was no limit to the increment of their affection for their sons, who were now Kṛṣṇa. Every day they found new inspiration for loving their children as much as they loved Kṛṣṇa"

Srimad-Bhagavatam

SB Canto 10.1 to 10.13

Although the inhabitants of Vrajabhūmi, the cowherd men and cowherd women, previously had more affection for Kṛṣṇa than for their own children, now, for one year, their affection for their own sons continuously increased, for Kṛṣṇa had now become their sons. There was no limit to the increment of their affection for their sons, who were now Kṛṣṇa. Every day they found new inspiration for loving their children as much as they loved Kṛṣṇa.

SB 10.13.26, Translation

Although the inhabitants of Vrajabhūmi, the cowherd men and cowherd women, previously had more affection for Kṛṣṇa than for their own children, now, for one year, their affection for their own sons continuously increased, for Kṛṣṇa had now become their sons. There was no limit to the increment of their affection for their sons, who were now Kṛṣṇa. Every day they found new inspiration for loving their children as much as they loved Kṛṣṇa.