Allah's Mercy will be shown only to those who are merciful; Show mercy to receive Mercy

the Messenger of Allah ﷺ said: "The merciful are shown mercy by al-Rahman (the Most Merciful). Be merciful to those on earth, and the One in the sky will be merciful to you. The womb is named after al-Rahman, so whoever connects it, Allah connects him, and whoever severs it, Allah severs him."

قَالَ رَسُولُ اللَّهِ ﷺ: «الرَّاحِمُونَ يَرْحَمُهُمُ الرَّحْمَنُ، ارْحَمُوا مَنْ فِي الْأَرْضِ يَرْحَمْكُمْ مَنْ فِي السَّمَاءِ. الرَّحِمُ شُجْنَةٌ مِنَ الرَّحْمَنِ، فَمَنْ وَصَلَهَا وَصَلَهُ اللَّهُ، وَمَنْ قَطَعَهَا قَطَعَهُ اللَّهُ».